Polyurethane Doffer Discs – Premium Cotton Picker Parts
Polyurethane Doffer Discs – Premium Cotton Picker Parts
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Product Introduction
Polyurethane Doffer Discs – Premium Cotton Picker Parts
Engineered for durability. Built for the harvest.
Overview
The polyurethane doffer disc is one of the most critical wear parts on a cotton picker. It is responsible for stripping seed cotton from the spinning spindles after each picking cycle. When doffers wear out or lose their resilience, harvest efficiency drops – more lint is left in the field, foreign matter increases, and costly downtime for replacements adds up fast.
Our polyurethane doffer discs are designed to outlast conventional rubber doffers in every measurable way. From the first row to the last acre, they deliver consistent stripping action, protect spindle finish, and keep your cotton picker running at peak productivity.
Why Polyurethane?
Polyurethane combines the elasticity of rubber with the toughness of engineering plastics. For cotton harvesting, this means:
- Superior abrasion resistance – withstands the friction of continuous high-speed rotation and contact with field debris
- Excellent tear strength – resists cuts, chips, and edge damage from stones and stalk fragments
- Stable performance across temperatures – remains flexible in cool mornings and heat-resistant during peak afternoon runs
- Oil and chemical resistance – unaffected by spindle lubricants, crop juices, and common field chemicals
- Longer service life – typically 2–3 times the lifespan of standard rubber doffers, reducing replacement frequency and per-acre cost
Polyurethane Doffer Discs – Premium Cotton Picker Parts Key Features
Precision manufacturing
Each doffer disc is cast using high-grade liquid polyurethane in a controlled process to ensure uniform density, perfect roundness, and consistent durometer throughout the part.
Strong steel-to-polyurethane bonding
The steel hub is prepared with advanced adhesion primers and mechanically locked to the polyurethane layer. This eliminates delamination – a common failure point in inferior aftermarket doffers.
OEM replacement dimensions
All discs are manufactured to original equipment specifications. They mount directly onto existing doffer shafts without modifications. Direct interchangeability with genuine OEM part numbers.
Customizable hardness
Available in a range of Shore A hardness values (typically 75A to 95A) to match different cotton varieties, moisture conditions, and picking speeds. Consult us for recommendations based on your specific operation.
Balanced for high-speed operation
Each doffer is dynamically balanced to reduce vibration at spindle speeds up to 4,000+ RPM, prolonging spindle and bearing life.
Polyurethane Doffer Discs – Premium Cotton Picker Parts Compatible Equipment
Our polyurethane doffer discs are available for all major cotton picker models, including but not limited to:
Case IH
- CPX 420, CPX 620
- CP 690, CP 770
- 20 Series (2020, 2040, 2050, 2060)
- Module Express series
John Deere
- Pro Series (Pro-12, Pro-16, Pro-24)
- CP690, CP770, CP780
- 7760, 9996
- CS 690, CS 770
Other brands
- Also available for most older and specialty models upon request. Please provide your machine serial number or original parts list for verification.
Polyurethane Doffer Discs – Premium Cotton Picker Parts Technical Specifications
| Parameter | Value |
|---|---|
| Material | Cast polyurethane elastomer |
| Hub material | High-strength steel, zinc-plated |
| Outer diameter | 152.4 mm (6.0 in) – standard |
| Inner diameter | 38.1 mm (1.5 in) – shaft mount |
| Thickness | 25.4 mm (1.0 in) nominal |
| Hardness range | 75 – 95 Shore A (customizable) |
| Operating temperature | -20°C to +90°C |
| Max spindle speed | 4,500 RPM (balanced) |
| Color | Natural amber / clear yellow / custom |
Specifications may vary by model. Please verify fitment with your machine's requirements.
Performance Benefits – At a Glance
- Higher picker efficiency – clean stripping reduces field losses by up to 3–5%
- Lower foreign matter – fewer leaf and stick fragments are carried into the basket
- Reduced spindle wear – proper stripping action maintains spindle finish, extending spindle life
- Less downtime – one set of polyurethane doffers typically lasts an entire season, even in harsh conditions
- Lower cost per acre – fewer parts replaced, less labor, and better cotton quality at the gin
Why Choose Us?
- Factory-direct supply – no middleman, better value
- In-house quality control – each batch is tested for durometer, balance, and adhesion strength
- Global shipping – fast and reliable delivery to major cotton-growing regions
- Technical support – our team includes former field technicians who understand your harvest challenges
- Continuous improvement – we update our compounds and designs based on real-world feedback from farmers and gin managers
Contact Us
Get a quote or request a free sample.
Web: www.chinapuela.com
Mail: zbhjpu@gmail.com
WhatsApp: 8613969341655
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