
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF63X450S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø63mm bore and 450mm 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.
With 450 mm of travel on a 63 mm bore, the MARF63X450S reaches across large fixtures while still pushing 1558 N at 0.5 MPa - nearly 2181 N at 0.7 MPa - so long slides and ejectors no longer need a separate cylinder-plus-flange assembly. The front flange is rolled in as part of the aluminium cover, the barrel is stainless steel, and the 16 mm rod is hard-chrome plated for wear life across the 30-800 mm/s speed band.
Retraction pulls back at 1457 N (0.5 MPa) and 2040 N (0.7 MPa). Both ends carry a variable air cushion, which matters at this stroke length: set the needle screws so the rod decelerates instead of slamming home under load. Plan real work at no more than about 935 N, equivalent to hoisting roughly 79 kg vertically with a 2:1 margin. The standard piston magnet lets CMSG / DMSG / EMSG switches report end positions without any modification. Operating envelope: 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), -20 to +70 C.
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF63X450S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 450 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | 2041 N |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| F | Front-cover mount: F = front-flange mounting. |
| 63 | Bore size in mm. |
| ×450 | 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.
Stripping a deep-drawn panel off a forming punch needs the full 450 mm of travel; retract force of 1457 N at 0.5 MPa pulls the panel free without distorting it.
A 60 kg jig carriage slides 450 mm between weld stations; with the carriage running in its own linear guides the rod sees almost no side force over the stroke.
The rod lifts a 70 kg film roll onto the winding shaft, staying inside the 79 kg vertical budget with margin to spare; a CMSG switch confirms both end positions.
Long strokes need straight loads: at 450 mm even a small side force multiplies into real rod bending, so run the load in its own guides or use a clevis that floats - a Y or I knuckle on the M14x1.5 rod thread takes up the misalignment. Downsize to the MARF50X450S (981 N at 0.5 MPa) if the load is light; 63 mm is the top of this series, so above 1558 N look at 0.7 MPa pressure or a larger cylinder type.
Bear in mind the cylinder is not a brake: cut the air and the load will push or pull the piston until something stops it. A rod lock on the 16 mm rod, or a positive stop in the fixture, is essential for held positions.
Quick checklist
Push 1558 N and pull 1457 N at 0.5 MPa; push 2181 N and pull 2040 N at 0.7 MPa; 317.7 kgf theoretical maximum at 1.0 MPa. Working pressure spans 0.15-1.0 MPa (22-145 psi) and speed runs 30-800 mm/s.
The barrel is stainless steel rather than painted tube, and the 16 mm piston rod carries a 20 um hard-chrome plate, so coolant mist, condensation and routine hose-downs do not flake or rust the body the way painted-steel minis fail. Grease-retaining piston seals and riveted aluminium covers complete the sealed body.
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