Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
Polyurethane Semi Finished Tube PU Tube Stock For Turning Parts
Factory Supply TPU Semi-Finished Tube Polyurethane Tube Blank For Custom Machining
Material：PU
Color: Red, Green
Hardness: Shore A 70A ~ 95A (customizable)
Temperature: -40 to 100℃
5.0
design customization
Please fill out the form below to request a quote or to request more information about us. Please be sure to upload customized requirement documents or pictures, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
1. Description
PU semi-finished tube is extruded polyurethane (TPU) hollow blank tube, manufactured from high-quality ester-based or ether-based polyurethane raw materials. It is a semi-finished raw material for further CNC turning, cutting and machining to produce PU seals, bushings, wear sleeves, buffer rings, rollers and other polyurethane elastomer parts. Strict dimensional tolerance, uniform hardness, smooth inner & outer surface, no bubbles, no impurities. We support customized outer diameter, inner diameter, wall thickness, hardness, length and color.
2. Key Features
- Two material options: Ester-based PU & Ether-based PU
- Wide hardness range: Shore A 70A ~ 95A, customizable
- Excellent abrasion resistance, high tensile strength & tear resistance
- Good oil resistance, anti-aging, low compression set
- Ether type: outstanding hydrolysis resistance, anti-mold, suitable for wet environment
- Ester type: higher mechanical strength, cost-effective
- Precise extrusion dimension, stable size after machining
- Smooth surface, low internal defects, less waste during turning
- Custom OD, ID, wall thickness, length & color available
3. Technical Specifications
| Item | Specification |
|---|---|
| Material | Ester-based TPU / Ether-based TPU |
| Hardness | Shore A 70A ~ 95A (customizable) |
| Outer Diameter (OD) | 10mm ~ 200mm (custom size acceptable) |
| Inner Diameter (ID) | Custom according to requirement |
| Wall Thickness | ≥3mm (minimum thickness negotiable) |
| Standard Length | 500mm / 1000mm / 2000mm, cut-to-length |
| Working Temperature | -40℃ ~ +100℃ |
| Color | Natural off-white, black, red, blue, transparent, custom color |
| Tolerance | OD ±0.2~0.5mm (adjustable as request) |
| Certificate | RoHS, SGS test report available |
4. Applications
- Hydraulic & Pneumatic PU seals, wear rings, back-up rings
- PU bushings, guide sleeves, bearing liners
- Machinery buffer blocks, shock absorber parts
- Conveyor rollers, driving wheels, silent rollers
- Automation equipment wear resistant components
- Mining, metallurgy, engineering machinery wear spare parts
- Custom polyurethane machined elastomer parts
5. Our Service ( Forever Seals )
- Custom size, hardness, color as drawings or samples
- Strict raw material inspection, no recycled material
- Stable extrusion quality, low bubble & impurity rate
- Short lead time for standard sizes
- Sample available for quality testing
- Support OEM & bulk wholesale
- Provide material test certificate upon request
6. FAQ
Q1: What’s the difference between ester PU and ether PU semi-finished tube?
A: Ester PU has higher tensile strength, better abrasion & oil resistance, suitable for dry, oil environment. Ether PU features excellent hydrolysis resistance, anti-mold, ideal for water, humid working conditions.
Q2: Can you make non-standard OD and ID?
A: Yes. We produce customized semi-finished tube based on your drawing parameters.
Q3: Can I get samples first?
A: Small sample pieces are available for your machining test, customers bear courier freight.
Q4: Minimum order quantity?
A: Standard sizes with low MOQ; special customized sizes depend on extrusion mold.
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