Piston Service Kit – Standard Seals for Parker HMI & HMD Series Tie Rod Cylinders
Example Models:
- PN080HM001
- PN100HM001
- PN125HM001
- PN160HM001
- PN200HM001
Piston Service Kit – Standard 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.
- Bidirectional proprietary U-lip piston seals (standard NBR grade for double-acting tie rod cylinders)
- NBR static O-rings for auxiliary piston end sealing
- Fabric PTFE wear guide rings, designed to bear radial side loads in tie rod cylinder installations
- High-strength PEEK backup rings to eliminate seal extrusion under system pressure spikes
- Anti-friction assembly lubricant and official Parker installation manual for tie rod cylinder disassembly & seal replacement
- Size-matched anti-extrusion support rings customized for HMI/HMD standard piston groove profiles
Base Standard Sealing Material: Class 1 NBR (Nitrile / Buna-N)
1. Fluid Compatibility
Compatible with standard mineral hydraulic oil, dry compressed air, general industrial grease and water-glycol hydraulic media. Not applicable for phosphate ester fire-resistant oil, ketones, esters, biodiesel and high-temperature synthetic hydraulic fluids. For these harsh media, FKM fluorocarbon high-temperature seal kits are offered as an upgrade alternative.
2. Operating Temperature Range
Continuous working range: -23°C to +74°C (-10°F ~ +165°F)
3. Pressure & Hardness Rating
Standard seal shore hardness A90; maximum continuous working pressure 210 bar (3045 psi). Equipped with matched PEEK backup rings, the instantaneous peak pressure resistance reaches 280 bar (4060 psi), matching the pressure specification of HMI & HMD series tie rod cylinders.
4. Material Core Traits
Balanced low friction, moderate abrasion resistance and cost efficiency, optimized for general industrial long-cycle operation of tie rod actuators.
