Parker Service Kits for Roundline Cylinders MMB Series for Pistons and Glands
Example Models:
PN040MMB01
PNO50MMB01
PN063MMB01
PNO80MMB01
PN100MMB01
PL040MMB01
PL050MMB01
PL063MMB01
PL080MMB01
PL100MMB01
Service Kits for Roundline Cylinders MMB Series
Product Overview
- Rod Gland Service Kits: Full set of rod-side sealing & wear components for the detachable front gland housing
- Piston Service Kits: Three configurable piston seal packages to match factory original piston structures
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.
Core Composition (All Standard Kits Include)
- External dust wiper seal (anti-contamination from workshop dust, metal chips)
- Main bidirectional rod lip seal (primary pressure containment)
- Anti-extrusion backup rings
- Heavy-duty polymer guide bearing strips (resist lateral side loads)
- Gland-to-head static O-ring + anti-extrusion back-up ring
- Cushion adjustment seal components (for optional double-end cylinder cushioning)
Design Advantages
- Compatible with MMB’s removable gland housing design: Seal replacement can be completed without full cylinder tube disassembly, drastically cutting maintenance downtime
- Factory-calibrated clearance matching the hard-chrome polished MMB piston rod journal surface, eliminating premature seal abrasion
- Two kit formats available: loose discrete seal packs for budget maintenance, and pre-assembled gland cartridge kits for ultra-fast field replacement
Application Fit
Suitable for all MMB rod diameters (22 mm to 220 mm), covers single-rod & double-rod MMB roundline cylinder variants.
- 100% OEM dimensional conformity: No machining or modification required during overhaul, eliminates leakage risks from mismatched aftermarket seals
- Full size spectrum coverage: Complete bore lineup (40 mm ~ 320 mm) matches all standard MMB roundline cylinder specifications
- Split modular kit selection: Users can purchase rod gland kits or piston kits separately, or combine full cylinder overhaul sets
- Extended service life: Standard PU/NBR seal compound delivers outstanding wear resistance against MMB’s induction-hardened chrome piston rods
- Maintenance-friendly packaging: Each kit is pre-sorted with labelled component lists, preventing missing spare parts during repair
- Harsh environment compatibility: Standard kits withstand steel mill dust, coolant splash and continuous heavy-duty operation
