
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF40X600S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø40mm bore and 600mm 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.
Extra bore and extra reach in one unit: the MARF40X600S puts 628 N of push and 528 N of pull at 0.5 MPa at the end of a 600 mm stroke. That stroke runs past the 500 mm standard limit for the Dia 40 MAR, so the barrel is manufactured to your length, and the front flange you mount it by is already part of the cylinder.
At 0.7 MPa the same bore produces 880 N extending, and the cushion screws at both ends trim the landing of a full-speed stroke. Size the job on about 377 N of practical force at 0.5 MPa - roughly 32 kg lifted vertically with a 2:1 margin - and lean on the stainless barrel and hard-chrome rod wherever moisture or cleaning spray is part of the shift.
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF40X600S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 600 mm |
| Acting type | Double acting + cushion (front mount) |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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. |
| 40 | Bore size in mm. |
| ×600 | 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.
Raises a counterweight-balanced access gate of about 30 kg; 628 N at 0.5 MPa gives the margin and the cushioned top stop keeps the gate from slamming.
Opens a heavy oven door via the flange-mounted body; the chromed rod and stainless barrel handle the warm, humid air around the deck.
Pushes scrap blanks 600 mm clear of a stamping die area; 880 N at 0.7 MPa clears nested blanks without stalling.
Step down to Dia 32 (402 N at 0.5 MPa) when 628 N is overkill; step up to Dia 50 (981 N) when it falls short. Over 600 mm the 16 mm rod needs help against side load, so guide the load in slides or hang it from an I or Y knuckle on the M12x1.25 thread. Loss of air means loss of position - the rod free-drifts rather than locking - so a separate rod lock is the fix where the extended position must be kept. The piston magnet is standard, ready for CMSG, DMSG or EMSG switches, and the 1/8" port can be specified as G or NPT thread when ordering.
Quick checklist
Use 628 N push and 528 N pull at 0.5 MPa, or 880 N push and 739 N pull at 0.7 MPa; the theoretical maximum is 128.1 kgf at 1.0 MPa. Air supply is 0.15-1.0 MPa (22-145 psi) filtered to 40 um, and rod speed runs 30-800 mm/s.
The MAR series carries its mounting on the front cover itself - F for front flange, U for top - so the cylinder bolts straight to the machine and separate feet or flanges are not part of the design. Rod-end I and Y knuckles still fit the M12x1.25 thread.
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