Airtac MARF Stainless Steel Mini Air Cylinder MARF50X125S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF50X125S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø50mm bore and 125mm stroke, 1/4" 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.
- BoreØ50 mm
- Stroke125 mm
- Port size1/4"
- Acting typeDouble acting + cushion (front mount)
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MARF Stainless Steel Mini Air Cylinder MARF50X125S
At 125 mm of stroke, the MARF50X125S still needs no mounting hardware - the front flange is rolled in as part of the cover itself. Double acting with a variable cushion at each end, it pushes 981 N and pulls 881 N at 0.5 MPa across the full 0.15-1.0 MPa (22-145 psi) range.
Plan continuous work around 589 N, roughly six tenths of the extend rating, and the heterogeneous piston seal will keep its grease where it belongs for years. The riveted stainless barrel shrugs off coolant mist and washdown, and the built-in magnet feeds position data to CMSG / DMSG / EMSG switches with no special-order piston.
Airtac MARF Stainless Steel Mini Air Cylinder MARF50X125S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF50X125S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 mm |
| Acting type | Double acting + cushion (front mount) |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 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 MARF50X125S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| F | Front-cover mount: F = front-flange mounting. |
| 50 | Bore size in mm. |
| ×125 | 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 MARF50X125S Is Used
Inline baler platen
Compacting cardboard offcuts in a small inline baler; 981 N of platen force keeps the chamber cycling without manual tamping between bales.
Tube bender feeder
Feeding tube blanks one at a time into a bender collet on a 125 mm index; retract at 881 N pulls the pusher clear before the bend starts.
Scrap chute flap
Swinging a heavy chute flap between scrap and rework bins under a punch press; the front flange mounts the hinge side straight to the chute wall.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF50X125S the Right Cylinder?
The 40 mm bore tops out at 628 N and the 63 mm bore starts at 1558 N (extend, 0.5 MPa), which places this 981 N cylinder right in the middle for heavier gates and clamps. At 125 mm of extension the 16 mm rod should not carry side loads - guide them in external bearings instead. Holding position on lost air is not part of the design, so pair it with a rod lock for suspended tools; I and Y knuckles still thread onto the M14x1.5 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 MARF50X125S FAQ
Its 981 N extend force at 0.5 MPa matches a 100 kg mass in theory, with pull at 881 N, extension rising to 1374 N at 0.7 MPa and a 200 kgf theoretical maximum at 1.0 MPa. For vertical work, halve the figure: plan lifts around 50 kg to keep a 2:1 margin on the rod and seals.
Both covers carry adjustable needle screws. Start the cylinder at low speed, then turn each needle in to lengthen the deceleration zone or out to shorten it. Tuned correctly, the 125 mm stroke stops quietly anywhere in the 30-800 mm/s speed band, even with a heavy gate swinging on the rod.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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