
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X30SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 30mm 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.
Behind the plain look of the MAC25X30SU sits a riveted stainless tube body that AirTAC rolls tight against aluminium covers and a stainless block - just a sealed round shell, nothing bolted or tied. Air works both sides of the piston (double acting) and twin needle screws give a variable cushion at each stop. At 0.5 MPa the bore delivers 245.3 N; keep real work near 147 N and it will lift roughly 12 kg vertically with margin to spare.
The U flat-end back cover bolts flush to a fixed face, and because the magnet ships as standard you can sense end positions with CMSG / DMSG / EMSG switches on day one. A 20 um hard-chrome rod keeps the sliding surface smooth through humid workshop air.
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X30SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 30 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 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). |
|---|---|
| 25 | Bore size in mm. |
| ×30 | 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.
The flat-end U cover sits flush against a rotary indexer body, letting the 245 N push drive a locking pin into a hardened notch.
Pop-up stops along a parcel sorter; the cushioned ends absorb the strike as each carton arrives, up to 800 mm/s travel speed.
Repeatably clamps sample trays in an analytical instrument enclosure where a compact stainless body resists cleaning chemicals.
Compare before you commit: a 20 mm bore pushes 157.0 N at 0.5 MPa, this 25 mm reaches 245.3 N, and the 32 mm version jumps to 402.2 N. Remember the piston drifts when air pressure is removed - fit a pilot check valve or rod lock if the load must stay put. Flush-mounted U cover plus an optional FA flange or LB foot covers most fixed installations; the 30 mm stroke keeps the envelope tight.
Quick checklist
Push 245.3 N and pull 206.1 N at 0.5 MPa; push 343.4 N and pull 288.5 N at 0.7 MPa; 50 kgf theoretical maximum at 1.0 MPa. Operating range 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-800 mm/s.
No. Every MAC cylinder carries a built-in piston magnet as standard, so CMSG / DMSG / EMSG reed or electronic switches detect end of stroke out of the box. The 30 mm stroke leaves room for one switch per end.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
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