
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X210SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm 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.
Built around a riveted stainless round barrel, this 40 mm bore MAC reaches 210 mm of stroke while pushing 628.3 N at 0.5 MPa. Double acting as standard, it carries a magnet in the piston from the factory, so CMSG, DMSG or EMSG reed switches drop on without a special-order piston. Air cushioning at both ends is adjustable with the needle screws, and speeds of 30-800 mm/s are supported.
For vertical work the numbers are friendly: about 64 kgf of lift at 0.5 MPa, or roughly 32 kg kept under a 2:1 safety margin. The hard-chrome plated 16 mm rod, aluminium covers and 1/8" ports suit general plant air, and the U flat-end back cover mounts flush against a fixed face.
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X210SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 210 mm |
| Acting type | Double acting + cushion |
| 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.
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×210 | Stroke length in mm. |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
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.
Lifts multipacks of about 30 kg up 210 mm onto a palletising conveyor, sitting inside the roughly 32 kg vertical-lift figure at 0.5 MPa.
Moves a guide arm across a rewinding station to lay cable evenly; the flat-end U cover mounts flush on the machine frame without adapters.
Opens and closes an environmental test chamber door in durability trials, cushioned at both ends for consistent 30-800 mm/s runs.
Between a 32 mm bore (402.2 N push at 0.5 MPa) and a 50 mm bore (981.3 N), this 40 mm bore's 628.3 N covers most 200 mm-class transfer motions. With 210 mm of unsupported rod, mount the load on external guides - the 16 mm rod should carry thrust, not bending.
The U flat-end back cover presents a flat fixed face for direct bolting, with FA flange, LB foot or SDB pivot options for the frame. A centred valve leaves the rod free, so use a rod lock or pilot check valve when position must hold. Magnets are built in, so CMSG / DMSG / EMSG switches are a simple add-on.
Quick checklist
0.5 MPa: 628.3 N push, 527.8 N pull. 0.7 MPa: 879.6 N push, 738.9 N pull. Theoretical maximum 128.1 kgf at 1.0 MPa. Over a 210 mm stroke that moves real loads - roughly 32 kg vertical once a 2:1 margin is kept.
A magnet is built into the piston as standard, so CMSG, DMSG or EMSG switches mount directly on the barrel without ordering a special cylinder. Extension, retraction and even intermediate stops can be signalled this way.
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