
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU40X175S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø40mm bore and 175mm 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.
The MARU40X175S pairs AirTAC's riveted round-barrel MA construction with a 175 mm stroke and an integrated U (up/top) mounting bracket, so the body carries its own mount and no separate flange or foot is bought. It is double acting with a variable air cushion at both ends, running on filtered air at 0.15-1.0 MPa (22-145 psi) and speeds of 30-800 mm/s.
At 0.5 MPa this 40 mm bore pushes with 628 N, which leaves about 377 N for real work once you keep a sensible margin. The stainless-steel barrel and hard-chrome plated 16 mm rod stand up to damp or washed-down surroundings better than painted mini cylinders, and the piston magnet that ships as standard lets CMSG, DMSG or EMSG switches sense position with no special-order piston.
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU40X175S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 mm |
| Acting type | Double acting + cushion (up 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). |
|---|---|
| U | Front-cover mount: U = up (top) mounting. |
| 40 | Bore size in mm. |
| ×175 | 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.
The 175 mm stroke reaches across the conveyor lane to kick misaligned cartons into the reject chute, with 628 N at 0.5 MPa ample for light packaging board.
An electronics test station uses the top-mounted bracket to bolt the cylinder over the fixture, clamping PCB pallets with about 377 N of practical holding force.
Maintenance crews fit the MARU40X175S to raise a hinged check jig on a machining cell, using the 32 kg vertical-lift margin with a 2:1 safety factor.
Compare before you commit: the 32 mm bore MAR pushes 402 N at 0.5 MPa and the 50 mm bore reaches 981 N, so the 40 mm bore's 628 N covers the middle ground for a 175 mm stroke. The standard piston magnet accepts CMSG / DMSG / EMSG switches, and the integrated U bracket bolts straight to a flat surface with no mounting accessories to order. On a stroke this long, keep the load guided - side loads bend the 16 mm rod and wear the seals early. Note that a plain MAR drifts when supply air is cut, so fit a rod lock if the load must be held.
Quick checklist
At 0.5 MPa the 40 mm bore pushes 628.3 N and pulls 527.8 N; at 0.7 MPa push force rises to 879.6 N. The theoretical maximum is 128.1 kgf at 1.0 MPa. The cylinder is double acting with a variable cushion at both ends, ports are 1/8", the rod is 16 mm with an M12x1.25 male thread, and the standard stroke limit for this bore is 500 mm.
No. Every MA-series cylinder, including the MARU40X175S, carries a piston magnet as standard, so AirTAC CMSG, DMSG and EMSG switches mount directly on the stainless barrel for end-of-stroke or mid-stroke signals without special ordering.
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