
The AirTAC MAC Stainless Steel Mini Air Cylinder MAC32X55SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø32mm bore and 55mm 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.
A flat-end U back cover and a 55 mm stroke make the MAC32X55SU easy to bolt flat against a machine plate, while the 32 mm bore swings 402 N of push at 0.5 MPa. Double acting with a variable air cushion at both ends, it accepts 0.15-1.0 MPa (22-145 psi) and cycles anywhere from 30 to 800 mm/s.
Grease-storing two-way piston seals keep lubrication inside the barrel between services, and the riveted stainless round body shrugs off splashes that rust painted minis. Every unit ships with the magnet already fitted, so CMSG, DMSG or EMSG reed switches clip on for position feedback without a special-order piston.
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC32X55SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 55 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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). |
|---|---|
| 32 | Bore size in mm. |
| ×55 | 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 (double rod, 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.
Clamping steel brackets into a welding jig with 241 N of working force, holding the parts square while the robot lays the bead.
Pressing caps home on 300 ml shampoo bottles; the 55 mm stroke matches the cap depth and the cushion kills the impact at full seat.
Stopping and seating tooling plates on a linear slide index, with the flat-end U cover bolted direct to the machine plate.
Compare bores by 0.5 MPa push: 25 mm gives 245 N, this 32 mm bore 402 N, and the 40 mm bore 628 N - all on the same 1/8" port. The U flat-end cover suits fixed, flush mounting; choose the CA pivot version instead if the rod must swing. If the load must stay clamped through a power loss, note the MAC piston drifts freely when air drops - a rod lock or pilot check valve is the fix, not the cushion.
Quick checklist
Push at 0.5 MPa is 402 N, pull 345.6 N; at 0.7 MPa expect 563 N push and 483.8 N pull, with a theoretical maximum of 82 kgf at 1.0 MPa. Air supply 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed range 30-800 mm/s, and the air must be filtered to 40 um.
The U flat-end back cover bolts flush against a bracket or machine plate, so no pivot pin is needed for fixed mounting. Add an FA flange, LB foot or SDB pivot bracket if the layout demands it, and an I or Y rod knuckle where the load could introduce side-play into the 12 mm rod.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.