Airtac MAC Stainless Steel Mini Air Cylinder MAC32X325SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC32X325SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø32mm bore and 325mm 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
- Stroke325 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 MAC32X325SU
Fixture and gate builders get 325 mm of powered travel in AirTAC's smallest cushioned bore family: the MAC32X325SU is double acting, air-driven in both directions, with a variable air cushion softening each end stop. Rated push at 0.5 MPa is 402.2 N, return pull 345.6 N, climbing to 563.0 N at 0.7 MPa. Its riveted construction - stainless tube rolled onto aluminium covers with a chrome-plated 12 mm rod - stays sealed and rust-free in wet workshops.
Work to about 241 N of real push at 0.5 MPa rather than the full 402.2 N rating, and you can raise a 20 kg mass vertically with a 2:1 ratio. The U flat-end back cover gives a clean fixed mounting face without a pivot bracket, and the standard-built magnet accepts CMSG, DMSG or EMSG switches for end-of-stroke signals.
Airtac MAC Stainless Steel Mini Air Cylinder MAC32X325SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC32X325SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 325 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 MAC32X325SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×325 | 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 MAC32X325SU Is Used
Sluice gate on a dye line
Raises and lowers a small sluice gate in a textile dyeing line; the stainless barrel and chrome rod stand up to humid, caustic air near the baths.
Stop fence on a cut-off saw
Positions the length-stop fence on an aluminium cut-off saw; 325 mm covers common profile lengths and the cushion removes the stop bounce.
Carton ejector at a sorter
Kicks misaligned cartons off a sortation spur; about 241 N of working push at 0.5 MPa moves a 15 kg carton sideways with margin to spare.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC32X325SU the Right Cylinder?
Bore choice at 0.5 MPa: 245.3 N from a MAC25, 402.2 N here, 628.3 N from a MAC40 - pick the 32 when the load lands between roughly 240 and 400 N. Air supply 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, 1/8 inch ports, M10x1.25 rod thread; G or NPT threads are order options.
The piston will drift if air is removed, since this design carries no internal lock - a pilot check valve or rod lock does the holding instead. A 325 mm stroke on a 12 mm rod deserves external guides; do not let tooling push sideways on the rod. Fixed frames suit the U cover, while pivoting linkages are better on a CA cover or SDB bracket.
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 MAC32X325SU 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; 82 kgf theoretical maximum at 1.0 MPa. Treat around 241 N - six tenths of the 0.5 MPa push - as the design figure for continuous duty.
The flat-end U cover presents a plain fixed face, so the cylinder bolts direct to a machine plate without a pivot bracket; FA flange and LB foot add rigid alternatives. First start: open both cushion needle screws fully, then close them gradually to tame the stop across the 30-800 mm/s speed range.
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