01HYDRAULIC
Rod Seals
Seal around the piston rod and retain hydraulic fluid on the pressure side.
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HYDRAULIC CYLINDERS
Hydraulic seals
for cylinders.
From one worn seal to a complete sealing kit. STEMA supplies rod seals, piston seals, wipers, guiding elements and static seals for hydraulic cylinder repair, service and production.
THE SEALING SYSTEM
One cylinder. Several seals, each with a specific job.
A cylinder kit is more than a ring with the right diameter. Profile, groove geometry, pressure, temperature, speed, medium and surface condition affect the selection. We help workshops identify the parts and build the solution.
PU · NBR · PTFE-based solutions
02HYDRAULIC
Piston Seals
Separate the pressure chambers across the piston. Single- and double-acting solutions for different operating conditions.
03HYDRAULIC
Rod Wipers
The first barrier against dirt, water and particles entering along the piston rod.
04HYDRAULIC
Guide / Wear Rings
Guide rod and piston, carry side loads and help prevent metal-to-metal contact.
View profiles
05HYDRAULIC
Buffer Seals
Installed ahead of the primary rod seal in demanding systems to handle pressure peaks and protect the main seal.
06HYDRAULIC
Static / Back-up Seals
O-rings, back-up rings and static elements complete the cylinder sealing system.
COMPLETE KITS
Overhauling a cylinder?
Send us the parts.
You do not need to identify every profile yourself. Photograph the old seals and send dimensions – or send the cylinder drawing. We can help assemble a complete sealing set for the cylinder.
Request complete kitWHAT WE NEED
Better data means faster identification.
01Seal / profile photo
02Rod diameter (d)
03Cylinder bore (D)
04Groove / housing dimensions
05Pressure and temperature
06Medium and quantity
Have the physical part but no drawing? Send clear photos with calipers visible. Accurate dimensions help us identify the solution faster.
MATERIAL SELECTION
The material follows the application.
The same profile may be available in several materials. We evaluate material against load and operating environment, not dimensions alone.
PUWear · hydraulics
NBROil · general hydraulics
FKMTemperature · chemicals
PTFELow friction · speed
POM / PAGuiding · support
CompositeHigh load · guiding
DIMENSIONS AND QUANTITIES
Find the size. Add your quantity.
Search by dimensions, profile or material and collect products in one enquiry. Need help with a complete kit? Send dimensions or a drawing.
Search hydraulic seals →WORKSHOP · SERVICE · OEM
Send us the dimensions or a drawing.
We will help identify the seals.
Include rod diameter, bore, groove dimensions, pressure, temperature, medium and quantity where possible. Photos of old seals or a cylinder drawing make identification easier.