9YF-1700 Towed-type Square Baler for Tractor

9YF-1700 Towed-type Square Baler for Tractor

The 9YF-1700 towed-type square baler is engineered for high-efficiency field collection of wheat straw, rice straw, corn straw, cotton stalks, alfalfa, and a wide range of pasture grasses. Its main drive adopts a double-row sprocket and double-chain transmission system, delivering robust, consistent power from the tractor PTO shaft to every working component. A screw-auger feeding mechanism transfers cut material smoothly into the compression chamber, where an automatic rope baling system produces uniform, high-density square bales sized at 460 mm × 360 mm. The compact bale geometry makes this small square baler an ideal choice for operations that prioritize neat stacking, efficient transport, and maximized barn storage.

What truly distinguishes the 9YF-1700 square baler machine is its German-sourced D-type knotter device. Manufactured to European precision standards, the dual-knotter system delivers consistent, reliable twine binding across every bale cycle, reducing misties that cause costly downtime during peak harvesting windows such as the Three Summers and Three Autumns seasons. The 1700 mm picking width and spring-tooth picker structure allow the machine to efficiently gather windrows in both paddy fields and dry croplands, provided the terrain is reasonably flat and free of stones. With a matching power range of 29.5 to 73.5 kW, the 9YF-1700 square baler for compact tractor and mid-sized tractor operations alike, making it one of the most versatile compact square balers available for mixed-crop farms today.

Technical Parameters

No.	Item	Unit	Specification
1	Model Name	/	Model 9YF-1700 Square Baler
2	Hitching Method	/	Towed-type
3	Picking Width	mm	1700
4	Feeding Inlet Width	mm	/
5	Picker Structure	/	Spring Tooth Type
6	Feeder Structure	/	Fork Feeding Mechanism
7	Knotter Type	/	D Type
8	Number of Knotters	pc	2
9	Compression Chamber Section Size (W×H)	mm	460×360
10	Baling Method	/	Automatic Rope Baling
11	Matching Power Range	kW	29.5-73.5
12	Overall Dimension (L×W×H)	mm	4965×2500×1750
13	Machine Weight	kg	1750

Key Features of the 9YF-1700 Hay Square Baler

1. Double-Row Sprocket Chain Drive
The main transmission relies on a heavy-duty double-row sprocket and double-chain system that distributes mechanical stress evenly across each drive cycle. This design minimises chain wear, reduces vibration under high-density baling loads, and ensures uninterrupted power transfer from the tractor PTO shaft to the compression plunger, feeder, and pick-up reel simultaneously.

2. 1700 mm Wide Spring-Tooth Pick-Up
The 1700 mm pick-up width allows the small square baler to collect wider windrows in a single pass, dramatically increasing field throughput. Spring-tooth tines flex over uneven ground, preventing crop loss and protecting the pick-up reel from rock damage. This design is especially effective for fluffy alfalfa, delicate pasture grass, and bulky corn stalk windrows alike.

3. German-Original D-Type Knotter
Two German-original D-type knotters deliver industry-leading tying reliability, producing consistent, tight knots with every bale cycle. The knotters are compatible with standard square baler twine and square baler wrap, tolerate a wide range of crop moisture levels, and are designed for rapid field-side maintenance, meaning downtime for knotter adjustment stays minimal even during 12-hour harvest days.

4. High-Density 460 x 360 mm Compression Chamber
The compression chamber produces dense, uniform square bales at a 460 mm x 360 mm cross-section. High bale density reduces the number of loads needed to transport a field's entire crop yield, cutting fuel and labour costs. The compact square bale format also stacks cleanly on standard pallets and fits conventional barn doorways, a major advantage compared with large round bales.

5. Broad PTO Power Compatibility (29.5 to 73.5 kW)
The 9YF-1700 is engineered to operate with tractors producing between 29.5 and 73.5 kW, covering virtually every compact and mid-range farm tractor on the market. Whether you run a 40 hp compact utility tractor or a 100 hp row-crop machine, the square baler PTO shaft engagement is smooth and safe, making this square baler for compact tractor use as well as larger operations simultaneously.

6. Dual-Field Adaptability: Paddy and Dry Land
Unlike many square baler machines designed exclusively for dry croplands, the 9YF-1700 is validated for paddy field operation as well. The robust undercarriage, wide-footprint tyres, and reinforced drawbar allow it to maneuver on soft post-harvest paddy soil without bogging down, while maintaining the pick-up ground clearance needed to avoid ingesting mud or standing water.

How Does a Square Baler Work?

Application Scenarios

1. Wheat Straw
Wheat straw is among the most commonly baled materials globally, and the 9YF-1700 excels in Three Summers harvesting conditions where speed is critical. The wide 1700 mm pick-up clears large windrow swaths in a single pass, and the dual German knotters produce consistently tied straw square bales at high throughput rates. Baled wheat straw is in demand for livestock bedding, paper pulp, and mushroom growing facilities.

2. Rice Straw
After paddy harvest, rice straw left in the field poses a fire risk and decomposition challenge. The 9YF-1700 efficiently gathers rice straw windrows on soft post-harvest paddy soil, compressing them into firm small square bales ideal for mushroom cultivation substrate, cattle bedding, and bioenergy feedstock. The spring-tooth reel handles the short, fine texture of rice straw without blockage or pick-up loss.

3. Corn Silage
The square baler for corn stalks configuration handles the bulky, high-moisture nature of post-harvest corn material effectively. When operating as a silage square baler with appropriate plastic wrap applied post-baling, the 9YF-1700 produces dense square silage packages that ferment efficiently for high-energy livestock feed. The fork feeder's timed charge control prevents chamber bridging that is common with heavy corn stalk loads.

4. Cotton Stalks
Cotton stalk collection with a mini square baler has historically been difficult due to the woody, branching nature of the stalks. The 9YF-1700 spring-tooth pick-up teeth and robust fork feeding mechanism are engineered to handle this material without excessive tine breakage. Baled cotton stalks are increasingly valuable as biomass fuel in rural boiler systems and as a composted soil amendment, making field collection economically attractive for cotton belt growers.

5. Pasture Grass
Permanent pasture and mixed grass swards cut and conditioned for hay production are an ideal application for this square hay baler. The 9YF-1700 produces compact, easy-to-handle small square hay baler output that suits small and medium livestock operations where labour for handling large round bales is limited. Dairy cattle and sheep operations particularly benefit from the precise portion-control that uniform square bale hay dimensions enable.

6. Sugarcane Tops and Leaves
Sugarcane harvest generates substantial quantities of green tops and dry leaf material. Collecting and baling this material with the 9YF-1700 prevents field burning and converts agricultural residue into a saleable feedstock for cattle rations and biogas production. The adjustable compression tension on the hay square baler accommodates the varying bulk density of green versus dry sugarcane residue in a single field pass.

7. Reeds and Wetland Grass
Reed beds harvested for thatching, paper, or bioenergy benefit from the 9YF-1700 towed configuration, which keeps the heavy machine weight on the tractor rather than on fragile wetland margins. The paddy-field-capable undercarriage tolerates the soft ground conditions typical of reed bed harvest sites, and the high pick-up width ensures efficient windrow clearing even on wide reed swaths cut by large mower-conditioners.

8. Alfalfa
Alfalfa is among the most nutritionally sensitive forage crops: delayed baling or rough handling causes leaf shatter and protein loss. The 9YF-1700 square baler for hay applications gathers conditioned alfalfa windrows at the correct wilt stage with minimal leaf disturbance, thanks to the gentle spring-tooth pick-up action. The resulting dense, uniformly tied alfalfa square bales retain maximum nutritional value and are readily accepted by premium dairy and horse hay markets worldwide.

Square Hay Baler Part Structure

Square Baler vs Round Baler

1. Bale Shape and Stacking
Square bales stack flush on flat surfaces, maximising barn capacity with virtually no wasted void space between units. Round bales, by contrast, create air gaps between adjacent cylinders that can reduce effective storage density by 20 to 30 percent. For operations with limited covered storage, the stackable geometry of small square baler output is a decisive advantage over round baler equivalents.

2. Manual Handling
Small square bales produced by the 9YF-1700 weigh approximately 15 to 30 kg depending on crop density, making them manageable for a single person to carry and stack without machinery. Round bales typically weigh 300 to 600 kg, requiring a front-end loader or telehandler for every movement. Equine operations, hobby farms, and small livestock producers strongly prefer this compact square baler format for day-to-day feeding convenience.

3. Transport Efficiency
Square bales fill flat-bed trucks and trailers completely, leaving minimal unused volume. Round bales create significant dead space when loaded on flat trailers and typically require specialised round bale trailers or stackers. For operations that sell or transport hay commercially, square baler output substantially reduces transport cost per tonne of forage compared to an equivalent round baler scenario.

4. Weather Resistance
Round bales have a natural advantage for outdoor storage: rain runs off their curved surface, and the outer layer acts as a protective thatch. Square bales absorb moisture readily from the top and sides unless covered or stored indoors. In humid climates, operators using a square bale baler must plan for covered storage or plastic wrapping to preserve nutritive quality, adding to operational cost compared to outdoor-stored round bales.

5. Mechanical Complexity
Square balers contain a knotter mechanism that round balers replace with net or twine wrap systems. The D-type knotter in the 9YF-1700 demands periodic adjustment and lubrication but is highly reliable when maintained correctly. Round baler belts, rollers, and square baler rollers serve equivalent bundling functions but degrade in different ways, with round baler belts typically representing a higher annual replacement cost than square baler twine expenditure on equivalent volumes.

6. Field Throughput and Economics
Large round balers generally achieve higher tonnes-per-hour throughput on wide open fields because they require fewer bale cycles per tonne. However, the 9YF-1700 square baler compensates with significantly lower bale handling, transport, and storage infrastructure costs. For diversified farms that sell hay retail or supply equestrian markets, the premium price per square bale hay unit often more than offsets the slightly lower field capacity compared to round baler alternatives.

Common Faults and Troubleshooting

Fault 1: Knotter Misfires / Loose Bales
Symptoms: Bales are not tied, fall apart on ejection, or have only one knot. Causes: Twine misrouted through tension plates or needles; dull knotter knife; debris in knotter bill socket; incorrect bill timing. Fix: Re-thread square baler twine per the routing diagram on the machine; sharpen or replace the twine knife; clean the knotter bill and re-check the timing marks on the knotter cam shaft against the operator manual specifications.

Fault 2: Plugging in the Feeder Throat
Symptoms: Machine stalls, shear bolt on auger or fork feeder shears, crop packs tightly in the feeder channel. Causes: Ground speed too high for crop volume; wet or tangled crop; worn fork feeder tines. Fix: Reduce forward speed, clear the blockage with the PTO disengaged, replace shear bolts with the correct grade specified for the 9YF-1700 square baler machine, and ensure fork tines are not bent out of their correct timing arc.

Fault 3: Variable Bale Density / Inconsistent Bale Length
Symptoms: Bales vary in weight and firmness; bale length is shorter or longer than set. Causes: Tension plate bolts not evenly adjusted; star wheel riding on debris rather than the bale surface; varying windrow density across the field. Fix: Re-adjust tension plates evenly on both sides of the compression chamber; clean the star wheel and its contact surface; maintain a more consistent ground speed to equalise feed rate into the square bale baler.

Fault 4: Chain Jumping or Breaking
Symptoms: Sudden loss of drive to one or more components; metallic noise from the drive housing; visible slack in the main drive chain. Causes: Chain stretched beyond the wear limit; idler sprocket not maintaining tension; sprocket teeth worn to a hooked profile. Fix: Measure chain stretch with a ruler against the specification; replace worn chain and any hooked sprockets as a set; re-tension the idler and verify all replacing square baler belts and drive components are the correct pitch and link count.

Fault 5: Pick-Up Leaving Crop Behind
Symptoms: Visible streaks of unlifted crop behind the pick-up reel; higher than expected field losses. Causes: Missing or bent spring-tooth tines; pick-up reel set too high off the ground; cam-track followers seized. Fix: Replace all damaged tines across the affected bar; lower the gauge wheels to bring the pick-up reel closer to the crop; free and lubricate the cam-track follower rollers so that all tine bars retract and extend correctly through the full rotation cycle.

Fault 6: Excessive Vibration or Noise from Flywheel Area
Symptoms: Abnormal shaking transmitted through the drawbar to the tractor; rhythmic knocking from the crankcase area during each plunger stroke. Causes: Loose flywheel retaining nut; worn crankshaft bearings; plunger slipper clearance out of specification. Fix: Immediately disengage the square baler PTO shaft, park on level ground, and inspect the flywheel torque on the crankshaft taper. Worn crankshaft bearings require a workshop repair; do not continue square baler operation with loose flywheel components as catastrophic failure may result.

Square Baler PTO Shaft: Connection and Function

The square baler PTO shaft is the mechanical bridge that transfers rotational power from the tractor's Power Take-Off output to the input gearbox of the square baler machine. Without a correctly specified and properly maintained PTO driveshaft, even the most advanced square baler for hay applications cannot function. On the 9YF-1700, the PTO input shaft is designed to accept a standard 6-spline 540 RPM or 1000 RPM connection, compatible with the vast majority of tractors in the 29.5 to 73.5 kW power class.

The PTO driveshaft itself consists of two universal joints (U-joints), a telescoping inner and outer tube to accommodate the varying distance between the tractor and baler as the machine moves over undulating terrain, and a protective plastic shield that prevents entanglement with crop material, clothing, or bystanders. The two U-joints allow the driveshaft to transmit torque through angular misalignments of up to 15 to 25 degrees without vibration, which is critical during headland turns when the angle between the tractor and the square baler changes rapidly.

Phasing of the two U-joints is equally important for smooth power transmission. If the two yokes are not correctly phased (i.e., positioned in the same plane), the driveshaft produces a cyclic speed variation at twice the PTO RPM. At 540 RPM, this vibration occurs 18 times per second and can cause rapid fatigue wear in gearbox input shaft seals, increase knotter mistiming, and create uncomfortable vibration in the tractor cab. Always verify PTO shaft phasing when installing a replacement shaft on your square baler machine.

The overrunning clutch built into most square baler PTO shafts is another critical component: it allows the heavy flywheel of the 9YF-1700 square baler to coast to a stop after the tractor PTO is disengaged, without back-driving the tractor gearbox. When the flywheel's stored energy is released suddenly, as in a feed plug event, the overrunning clutch also prevents destructive torque spikes from travelling back to the tractor powertrain. Inspect the overrunning clutch annually and replace it if it slips under load or fails to freewheel in the correct direction.

FAQs

Q1: What tractor power is required to run the 9YF-1700 square baler for compact tractor use?
A: The 9YF-1700 is compatible with tractors producing between 29.5 and 73.5 kW (approximately 40 to 100 hp). At the lower end, it is suitable as a square baler for compact tractor configurations on small farms baling light crops like pasture grass. For heavy crops such as dense corn stalks or wet alfalfa, a tractor near the upper end of the range is recommended to maintain bale density without overloading the PTO shaft.

Q2: What type of square baler twine does the 9YF-1700 use, and how much does it consume?
A: The machine accepts standard polypropylene or sisal square baler twine with a minimum breaking strength of 130 to 150 kg. Twine consumption depends on bale length setting but is typically 4 to 6 metres of twine per bale (two strings of 2 to 3 metres each). A full twin spool of standard twine should produce several hundred bales before requiring replacement. Always use the twine grade recommended in the operator manual to prevent knotter misfires.

Q3: How long is a square bale of hay produced by this machine?
A: Bale length is adjustable via the star wheel metering mechanism. Typical bale lengths range from approximately 400 mm to 1200 mm. The cross-section is fixed at 460 mm x 360 mm. Adjusting bale length changes bale weight: a 900 mm long bale of medium-density alfalfa weighs roughly 20 to 28 kg, which is comfortable for manual handling. Longer bales increase weight per unit and are preferred for commercial hay sales requiring pallet stacking.

Q4: Can the 9YF-1700 be used as a silage square baler with plastic wrap?
A: Yes, the 9YF-1700 can be used as a silage square baler when combined with a separate inline or individual bale wrapper. After baling high-moisture grass or corn silage material, the bales should be wrapped immediately with approved square baler wrap film to exclude oxygen and initiate anaerobic fermentation. Silage baling requires higher-moisture crop than dry hay, so monitor feed rate carefully to prevent feeder blockages with heavy wet material.

Q5: How do I replace the spring tines on this small square hay baler?
A: Replacing pick-up spring tines is a straightforward field repair requiring no special tools. Each tine clips or bolts onto its carrier bar using a simple retention clip or bolt, depending on the bar design. Disengage the PTO and lower the pick-up guard before working near the reel. Fit the new tine with its bend pointing in the correct rotation direction. Keep a selection of replacement tines in your field service kit as they are among the square baler parts most likely to require attention during a busy season.

Q6: What is the correct PTO speed for operating the 9YF-1700 square baler PTO shaft?
A: The 9YF-1700 square baler is designed to be driven at 540 RPM PTO speed, which is the standard for this class of square baler machine. Operating at significantly above 540 RPM accelerates wear on the knotters, chains, and feeder mechanisms, while operating well below this speed reduces bale density and throughput. Always set the tractor engine speed to achieve the rated 540 RPM at the PTO output before engaging the square baler PTO shaft.

Q7: How does this square baler for corn stalks compare to one designed only for hay?
A: The 9YF-1700 is a multi-crop square hay baler machine capable of handling both dry hay crops and heavier residue crops like corn stalks. The key adjustment when switching to corn stalks is to increase the compression chamber tension plate settings to achieve adequate bale density with the lower bulk-density, woody material. Ground speed should also be reduced compared to light hay baling to prevent feeder throat blockages with the bulkier corn stalk charge material.

Q8: What square baler sizes are available, and how does the 9YF-1700 compare?
A: Square baler sizes are typically categorised by bale cross-section: small square balers produce bales roughly 350 to 400 mm wide, mid-size machines produce 460 to 600 mm cross-sections, and large commercial square balers produce bales 800 mm or wider. The 9YF-1700 at 460 x 360 mm sits in the compact to mid-size category, making it ideal for operations that need the benefits of a small square baler but with higher throughput than the smallest available square baler sizes.

Q9: What is the difference between a self-propelled square baler and this towed model?
A: A self propelled square baler integrates the baling mechanism into a self-driven machine that does not require a separate tractor. Self-propelled models offer higher automation and one-person operation but come at significantly higher capital cost and maintenance complexity. The 9YF-1700 towed model is far more cost-effective for farms that already own a suitable tractor, and the towed configuration means the investment is spread across the tractor's multiple uses rather than dedicated solely to baling.

Q10: Can this compact square baler handle sorghum and reed crops?
A: Yes. The 9YF-1700 handles sorghum stover and reed material effectively when these crops have been cut and allowed to dry to an appropriate moisture level for baling. Sorghum and reed material tends to be long-stemmed, and the auger feeding mechanism handles the lateral consolidation required for these crops well. Operators working with reed beds should be particularly careful to clear the pick-up reel of any root or soil material that may be picked up along with the surface crop to prevent premature wear on the compression chamber wear plates.

Customer Reviews

James Whitfield, Grain and Hay Farmer, United States
"I run this 9YF-1700 behind my 65 hp tractor on wheat and alfalfa fields in Kansas, and it is honestly one of the best purchases we have made in years. The pick-up width is wide enough that I can cover a whole windrow in one shot, which saves a ton of back-and-forth time. The German knotters haven't missed a single tie in four months of use, and we have put through a lot of bales. Parts arrived quickly when I needed a replacement spring tine. Couldn't be happier with the quality-to-price ratio."

Michelle Tremblay, Forage Contractor, Canada
"We supply square bale hay to a network of equestrian centres in Ontario, so bale consistency is everything for us. The 9YF-1700 gives us really uniform bales, which our clients appreciate. The knotter twine stays properly tensioned even in our cold autumn mornings, which was a problem with our previous machine. Also very impressed with how quickly this small square baler handled the second alfalfa cut this year. Delivery took about six weeks from order, which was acceptable given the distance."

Roberto Fuentes Garza, Agricultural Contractor, Mexico
"Very happy with this square baler. We bought it to bale wheat straw and corn stover on our plots in Jalisco. The machine works well with our 75-horsepower tractor, and the bales come out very compact. We have been using it intensively for eight months now and have not had any major breakdowns. The company's customer service was very attentive, and they sent us the manual in an easy-to-understand format. I would recommend it without hesitation to any producer looking for a reasonably priced tractor square baler."

Andrew Kowalski, Fodder Exporter, Australia
"We operate a dairy and fodder export business in New South Wales and have been looking for a reliable mini square baler that could handle kikuyu, rye grass, and lucerne all in the same season. The 9YF-1700 handled all three without any changes to the machine settings, which saves a lot of time. The 460 by 360 mm bale size fits our export pallet footprint perfectly. Had one knotter timing issue in the first week, called the technical line and got a clear explanation on how to re-adjust it. Really solid after-sales support."

Gurpreet Singh Dhaliwal, Paddy Farmer, India
"We have been baling paddy straw in Haryana for the past two seasons using the 9YF-1700 and it handles the soft post-harvest field conditions better than I expected. The machine is heavy but our 55 kW tractor manages it fine. Bale density is good and the local mushroom factory pays well for tightly packed straw bales. One of my workers had no prior experience with a square baler machine and was operating independently within two days, so training is not complicated. Shipping to India was about 45 days and packing was good."

Dmitry Voronin, Grain Farmer, Russia
"Really good square baler for the price we paid. We use it on a 200-hectare wheat farm in Krasnodar and it produces a consistent bale that fits our storage barn perfectly. We had a minor issue with a shear bolt on the fork feeder after hitting a hidden irrigation pipe, but that is a wear item and the fix took less than 15 minutes. Replacement parts were available locally, which is important given our location. The German knotter is clearly higher quality than what we saw on two other brands we compared. Have recommended it to three neighbours already."

Carlos Eduardo Mendes, Hay Exporter, Brazil
"We export hay square bales to markets in the Middle East from our operation in Parana state and needed a machine that could handle high daily throughput. The 9YF-1700 easily does 5 to 6 hours of continuous baling per day behind our 70 kW tractor without overheating or clogging. The bale dimensions are consistent enough that each pallet load is within the weight tolerance our shipping agent requires. Logistics from China was smooth, pre-shipment inspection report was provided, and the machine arrived in perfect condition. Price is fair for this build quality."

Laurent Bonneau, Cattle Farmer, France
"I am a cattle farmer in the Beauce region, and I tried the 9YF-1700 on my ryegrass and clover meadows this year. The machine picks up even small windrows very cleanly, and the bales are very tight. What impressed me the most is the overall sturdiness of the machine and the knot quality, even on clover, which is often difficult. The transmission chain did not require any adjustments during the entire season. I bought it as a small square baler for a compact tractor, and it keeps all its promises."

Shahid Nawaz Malik, Cotton and Sorghum Farmer, Pakistan
"We farm cotton and sorghum in Punjab province and bought this square baler for cotton stalk collection after the harvest. Cotton stalks are tough on machines but the 9YF-1700 handled them well after we adjusted the tension plates to the higher setting. In our first season we baled over 800 tonnes without any major breakdowns. The sales team responded to technical questions promptly and sent us a video showing how to adjust the knotter timing. For a compact square baler at this price point, the build quality is genuinely impressive. We are ordering a second unit this year."