Product Description
Seal kit GSK 512-1 by Liftsplus.com is engineered for maintenance of hydraulic cylinders in forklifts and pallet jacks, featuring NBR, urethane, and PTFE seals; designed for standard bores and hydraulic systems up to 3000 PSI. Industry-standard dimensional and material specifications ensure compatibility in OEM and aftermarket service.
Specifications
Hydraulic/Pneumatic
| Seal Material | Nitrile rubber (NBR) seals, urethane back-up rings, PTFE tube end seals |
| Seal Profile | Double-acting U-seal profile in accordance with ISO 5597 |
Material & Construction
| Seal Hardness | Nitrile seals: 70 Shore A, Urethane rings: 90 Shore A, PTFE tube ends: ASTM D4894 compliant |
Mechanical Specifications
| Kit Application | Seal kit for hydraulic cylinder maintenance in material handling equipment |
| Operating Tolerance | Seal dimensional tolerance: ±0.005 inch |
Part Numbers & Compatibility
| Manufacturer Part Number | GSK 512-1 |
| Superseding/Evolution Part Number | GSK 512 (base kit, alternate SKU found in product line) |
Frequently Asked Questions
Q: What materials are used in the GSK 512-1 seal kit?
A: The GSK 512-1 contains nitrile rubber (NBR) primary seals, urethane back-up rings, and PTFE tube seals. This material combination provides excellent chemical resistance to hydraulic fluids and reliable sealing across standard bore sizes in material handling cylinders.
Q: What is the pressure rating for the GSK 512-1?
A: The GSK 512-1 is rated for hydraulic systems up to 3000 PSI maximum working pressure. It is suitable for standard-bore cylinders in pallet jacks, forklifts, and other industrial lift equipment.
Q: Which pallet jacks and forklifts does the GSK 512-1 fit?
A: The GSK 512-1 is engineered for hydraulic cylinder maintenance in material handling equipment including pallet jacks, walkie stackers, and counterbalance valve cylinders. Verify your equipment cylinder bore diameter and port thread size match the kit specifications before ordering.
Q: What is the lifespan of seals in the GSK 512-1 kit?
A: Seal lifespan varies with equipment usage intensity and maintenance. Seals typically perform reliably for 2000 to 3000 operating hours. Replace the kit if internal leakage develops, cycle speed reduces, or external weeping occurs at cylinder ports.
Q: Does the GSK 512-1 replace the older GSK 512 part number?
A: Yes, GSK 512-1 is the current-generation successor to GSK 512. It features updated NBR and PTFE specifications with improved dimensional tolerances for better fitment in modern and legacy hydraulic cylinders. Confirm your equipment cylinder specifications before ordering.