Airtac MAC Stainless Steel Mini Air Cylinder MAC32X250SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC32X250SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø32mm bore and 250mm 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.
- BoreØ32 mm
- Stroke250 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC32X250SU
A 12 mm hard-chrome rod leaves the 32 mm stainless barrel of the MAC32X250SU to cover a 250 mm stroke, with covers riveted onto the tube rather than held by tie-rods. Air drives the piston both ways, and needle screws at each end trim a variable air cushion. Push at 0.5 MPa is 402.2 N against 345.6 N on retract, and 563.0 N at 0.7 MPa.
The U flat-end back cover takes mounting hardware directly on its flat face. Rated from 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, the cylinder suits 30-800 mm/s cycling, and the cushion lets heavier loads stop softly at speed. In service terms, plan workloads near 241 N at 0.5 MPa rather than the full rating, and let the standard magnet feed CMSG, DMSG or EMSG switches.
Airtac MAC Stainless Steel Mini Air Cylinder MAC32X250SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC32X250SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 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.
Theoretical Output Force (Ø32mm)
| 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.
Model Code: Airtac MAC Stainless Steel Mini Air Cylinder MAC32X250SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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.
Where the Airtac MAC Stainless Steel Mini Air Cylinder MAC32X250SU Is Used
Case ejector at the end of a shrink-wrapper
402 N at 0.5 MPa knocks a finished case off the line; the flat U cover bolts straight to the frame plate.
Belt-tension take-up on a long sortation line
The 250 mm stroke absorbs belt stretch while the cushion keeps the carriage from slamming its stop.
Door clamp on a CNC sheet-metal cell
Roughly 241 N of usable force holds a door shut against weld flash, with an EMSG switch proving it is latched.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC32X250SU the Right Cylinder?
If 402.2 N at 0.5 MPa is more than the job needs, the MAC25 delivers 245.3 N; if it falls short, the MAC40 offers 628.3 N in the same round-body format. On a 250 mm stroke, side loads bend the 12 mm rod quickly, so hang the load on a guide or on the I or Y rod knuckle accessories. A de-energised valve leaves the rod free to coast, so position-holding duty needs a rod lock or pilot check valve, not the cushion. PT threads come standard with G and NPT options on request.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAC Stainless Steel Mini Air Cylinder MAC32X250SU FAQ
Push 402.2 N and pull 345.6 N at 0.5 MPa; push 563.0 N and pull 483.8 N at 0.7 MPa; theoretical maximum 82 kgf. Stroke 250 mm, port 1/8", rod thread M10x1.25, speed 30-800 mm/s, pressure 0.15-1.0 MPa (22-145 psi).
The rolled stainless tube and 20 um hard-chrome plated rod stand up to washdown, humidity and outdoor exposure where painted bodies chip and corrode, and the riveted round body seals the piston without tie-rod maintenance.
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