Forklift PU Hydraulic Piston Seal – UN UHS Heavy Machinery Oil Seal
$0.99
PU hydraulic piston seal for forklift heavy machinery. UN/UHS type with 12 material options NBR HNBR EPDM Silicone FKM PTFE. 30-90 Shore A, standard/custom size.
Forklift PU Hydraulic Piston Seal — UN / UHS Type, 12 Material Options
This PU (polyurethane) hydraulic piston seal is a standard-size UN/UHS-type seal designed for forklift heavy machinery hydraulic cylinders. The seal provides the primary piston-to-cylinder-bore sealing function — preventing hydraulic fluid from bypassing the piston and maintaining full lifting pressure. Available in 12 material compounds including NBR, HNBR, EPDM, Silicone, FKM/Viton, CR, PU, FFKM, AFLAS, FVMQ, PTFE, and ACR, each with specific temperature ranges and fluid compatibility profiles. The material selection determines seal performance — PU (blue) provides excellent wear resistance for high-cycle applications, FKM (brown/green/black) handles high-temperature hydraulic systems up to 200°C, and PTFE (white) offers the widest temperature range from -180°C to 260°C with outstanding chemical resistance.
This seal is manufactured to standard mold dimensions for UN and UHS piston seal profiles commonly used in forklift lift cylinders, tilt cylinders, and steering cylinders. The 30-90 Shore A hardness range allows selection of the optimal seal stiffness for the specific application — softer seals conform better to worn cylinder bores while harder seals provide longer service life in smooth, well-maintained cylinders. Complete material specifications include: NBR (-30°C to 100°C, mineral oil), HNBR (-20°C to 150°C, high-temperature oil), EPDM (-55°C to 150°C, glycol-based fluids), Silicone (-55°C to 205°C, extreme temperature), FKM (-20°C to 200°C, high-temperature oil/chemical), and PTFE (-180°C to 260°C, universal chemical resistance). Custom sizes and colors are available with OEM/ODM service.
Installation requires cylinder disassembly and careful cleaning of the seal groove. The piston seal must be installed with the sealing lip oriented toward the pressure side — incorrect orientation causes immediate seal failure and cylinder bypass. Lubricate the seal and cylinder bore with clean hydraulic fluid during assembly. Replace in pairs with the rod seal and wiper for a complete cylinder service. For related hydraulic seal kits and cylinder components, browse our Forklift Hydraulic System catalog.
Technical Specifications
| Parameter | Value |
|---|---|
| SKU | SP100320 |
| Type | PU Hydraulic Piston Seal (UN / UHS Profile) |
| Material Options | NBR, HNBR, EPDM, Silicone, FKM, CR, PU, FFKM, AFLAS, FVMQ, PTFE, ACR |
| Hardness | 30-90 Shore A |
| Size | Standard Size / Customized |
| Application | Forklift Heavy Machinery Hydraulic Cylinders |
Compatible Equipment
| Type | Models |
|---|---|
| Forklift / Heavy Machinery | Hydraulic cylinders requiring UN/UHS profile piston seals |
Seals are packaged 1000 pcs per PP bag in carton boxes. Standard freight delivery to major ports worldwide. For material recommendations or bulk orders, contact our team with your application requirements.
Full Category Coverage
One supplier for all forklift systems — engine, hydraulic, electrical, mast, brake, undercarriage. No need to juggle multiple vendors.
No Minimum Order
Trial orders welcome. Single-piece to bulk supply. You test first, scale later. We treat every order seriously.
Three Quality Choices
Original, OEM, or Aftermarket. You decide based on budget and application. We don't upsell — you control cost and performance.
Direct 1-on-1 Communication
You talk to the sourcing decision maker. No sales reps, no forwarding. Faster answers, clearer quotes, real accountability.
Mixed Order Consolidation
Combine different parts in one shipment. Save on freight. We handle the picking, packing, and export documentation.
After-Sale Warranty
Manufacturing defects covered. Free replacement or credit arranged quickly. Your trust is worth more than any single transaction.
Same part, different brand numbers. This cross-reference table helps you confirm compatibility across multiple forklift brands. If your brand or part number is not listed, send it to us — we will match it.
| Brand | OEM Part Number | Notes |
|---|---|---|
| TOYOTA | 47201-23300 | Original |
| KOMATSU | 3EB-30-41200 | Original |
| HELI | 24022-83011 | Original |
| HANGCHA | R240-83011 | Original / OEM |
| LINDE | 0009830123 | OEM |
| HYSTER | H47201-233 | OEM |
| TCM | TCM-47201 | OEM |
| AFTERMARKET | AM-47201 | Cost-effective replacement |
Follow these four steps to get the fastest and most accurate quotation. The more details you provide, the quicker we can confirm compatibility and pricing.
Send Your Part Number or Forklift Information
Provide the OEM part number, a clear photo of the old part, or the forklift brand and model. Any one of these works. We'll use it to cross-match the correct part.
Tell Us Your Quality Preference and Quantity
Choose Original, OEM, or Aftermarket quality. Let us know how many pieces you need — a single trial unit or a bulk order. We'll quote accordingly.
Provide Your Destination and Shipping Preference
Tell us the destination country and preferred shipping method (sea freight, air freight, or express courier). This helps us calculate delivery time and cost accurately.
Combine Related Parts (Optional)
If you need other forklift parts, include them in the same inquiry. We support mixed order consolidation — less freight cost, less paperwork.
Request Forklift Parts Quotation
📦 Part Number
If you already have the OEM number or reference number, quotation and matching will usually be much faster.
🚜 Forklift Model or Serial
If the exact part number is not available, forklift model details can help narrow the correct product range.
📸 Product Photos
Clear old-part photos, labels or packaging images are useful when buyers need help confirming the correct part.
🌍 Quantity & Destination
Quantity, country and shipping terms help improve quotation structure for EXW, FOB or CIF comparison.
Reviews
There are no reviews yet.