Airtac MARF Stainless Steel Mini Air Cylinder MARF25X210S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF25X210S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø25mm bore and 210mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
- BoreØ25 mm
- Stroke210 mm
- Port size1/8"
- Acting typeDouble acting + cushion (front mount)
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
About the Airtac MARF Stainless Steel Mini Air Cylinder MARF25X210S
A 210 mm travel on a 25 mm bore makes the MARF25X210S handy for long slide moves in tight layouts. Air drives the rod both ways while twin adjustable cushions soak up end-of-stroke shock, and the front flange is part of the front cover itself, so nothing extra needs ordering. At 0.5 MPa the cylinder extends with 245.3 N and retracts with 206.1 N; supply spans 0.15-1.0 MPa (22-145 psi) and 30-800 mm/s.
It can hoist about 25 kg vertically at 0.5 MPa by the numbers; keep to near 12.5 kg for a 2:1 margin on real lifts. Because the barrel is stainless steel and the 10 mm rod carries a 20 um hard-chrome plating, condensation, coolant mist and outdoor duty cause far less grief than on painted or plain aluminium minis. The piston magnet is factory-fitted, so CMSG, DMSG and EMSG switches mount straight on.
Airtac MARF Stainless Steel Mini Air Cylinder MARF25X210S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF25X210S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 210 mm |
| Acting type | Double acting + cushion (front mount) |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MARF Stainless Steel Mini Air Cylinder MARF25X210S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| F | Front-cover mount: F = front-flange mounting. |
| 25 | Bore size in mm. |
| ×210 | Stroke length in mm. |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MARF Stainless Steel Mini Air Cylinder MARF25X210S Is Used
Carton kicker on a pharma line
At 245.3 N push the cylinder kicks sorted cartons into a collection gutter; the 210 mm reach clears a wide transfer table in one move.
Greenhouse roof vent arm
Opening louvered tomato-greenhouse vents stroke by stroke, outdoors: the stainless tube and chrome rod laugh off condensation and fertilizer mist.
Dobby loom batch pusher
Advancing fabric rolls on a dobby loom take-up: 206.1 N return force retracts cleanly at cycling speeds inside the 30-800 mm/s window.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF25X210S the Right Cylinder?
Compare first: a 20 mm MAR pushes 157.0 N at 0.5 MPa and a 32 mm MAR reaches 402.2 N, so this 25 mm model is the middle step for 210 mm moves. A plain MAR holds nothing on air loss - pressure off, piston wanders - so fit a rod lock where stopping matters. The flange is already on the front cover and the magnet already in the piston; for a stroke this long, carry side loads on outside guide rails to spare the 10 mm rod.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MARF Stainless Steel Mini Air Cylinder MARF25X210S FAQ
Numbers for the 25 mm bore: 245.3 N push and 206.1 N pull at 0.5 MPa; 343.4 N push and 288.5 N pull at 0.7 MPa; up to 50 kgf theoretical at 1.0 MPa. Porting is a 1/8" thread and the rod thread is M10x1.25.
Both ends carry a variable air cushion; turn the needle screws in or out during your first runs until the 210 mm stroke stops smoothly at speeds up to 800 mm/s. The cushion only softens the end of travel - it is not a brake.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MARF Stainless Steel Mini Air Cylinder MARF25X210S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.