Piston Service Kit with LoadMaster Seals for Parker HMI & HMD Series Tie Rod Cylinders
Example Models:
- PZ080HM001
- PZ100HM001
- PZ125HM001
- PZ160HM001
- PZ200HM001
Piston Service Kit with LoadMaster Seals for Parker HMI & HMD Series Tie Rod Cylinders
Product Overview
A: Depends on the style of tie-rod. We would like to cast and forge once the quantity above 100 pcs.
A: Well, it depends on the quantity and style of hydrualic cylinders, at least 60 days if we make casting and forging, at least 35 days by maching.
A: Sure, we are the manufacutuer and trading of hydraulic cylinder.
A: Double-Acting-have a port at each end, supplied with hydraulic fluid for both the retraction and extension. Single-Acting-hydraulic fluid enters through
a port at one end of the cylinder, which extends the rod by means of area difference. An external force or gravity returns the piston rod.
A: Sure. Show us the drawing, we will quote for you soonest.
A: Yes, we make and supply a wide rang of hydrualic cylinders as a proffetional manufacture, there are only some kinds of them show on the website. Freely contact us to get more information.
1. Superior Heavy Side Load Resistance
HMI and HMD tie rod cylinders frequently operate with offset radial loads from lifting, stamping and clamping equipment. LoadMaster composite seals resist twisting, lip roll and premature wear that quickly damages single-layer standard NBR piston seals under unbalanced loads.
2. Extended Service Life for High-Cycle Operations
The bonded PTFE sliding surface cuts dynamic friction by over 40% versus standard lip seals, reducing heat buildup and seal fatigue for continuous 24/7 production line cycling. Maintenance downtime and seal replacement frequency are greatly reduced.
3. Wider Thermal Operating Window
LoadMaster HNBR composite construction tolerates higher sustained fluid temperatures, eliminating softening, permanent set or leakage that plagues standard NBR seals in warm hydraulic circuits.
4. Minimal Cross-Chamber Internal Leakage
Precision-machined bidirectional sealing lips maintain consistent zero bypass between cylinder chambers under fluctuating pressure, preserving precise positioning and stable thrust output for heavy-load automation.
5. Enhanced Anti-Extrusion Performance
Integrated reinforcement edges paired with heavy-duty PEEK backup rings prevent seal extrusion at groove clearances during system startup pressure surges common in industrial hydraulic circuits.
Core LoadMaster Composite Seal Construction
LoadMaster seals feature a multi-layer composite structure: a tough high-temperature HNBR elastomer base bonded to a low-friction filled PTFE sliding wear face, integrated with anti-extrusion edge reinforcement, a proprietary Parker formulation exclusive to heavy-duty tie rod cylinder service kits.
1. Fluid Compatibility
Compatible with mineral hydraulic oil, water-glycol, mild synthetic hydraulic fluids, general greases and compressed air. Superior resistance to oil aging, oxidation and minor fluid contamination compared to standard NBR seals. For extreme chemical media, FKM LoadMaster upgrade kits are available separately.
2. Operating Temperature Range
Continuous operating range: -30°C to +110°C (-22°F ~ +230°F), far wider than standard NBR seal kits (-23°C ~ +74°C)
3. Pressure & Load Rating
Max continuous working pressure: 210 bar (3045 psi), matching HMI/HMD cylinder nominal rating; instantaneous peak pressure tolerance up to 315 bar (4568 psi with supplied PEEK backup rings). The LoadMaster sliding face drastically reduces friction heat under sustained heavy side loads, the primary failure cause of standard seals in tie rod cylinder applications.
4. Hardness & Wear Resistance
Base elastomer Shore A 88, balancing flexibility for sealing and abrasion resistance for millions of reciprocating cycles. The PTFE sliding layer eliminates metal scuffing and drastically extends service intervals.
