Airtac MAC Stainless Steel Mini Air Cylinder MAC32X425SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC32X425SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø32mm bore and 425mm 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
- Stroke425 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 MAC32X425SU
MAC32X425SU pairs a 32 mm bore with a generous 425 mm stroke in AirTAC's riveted round-body mini format: a stainless-steel barrel rolled onto aluminium covers, with a hard-chrome plated 12 mm rod running through it. Double acting with a variable air cushion at both ends, it pushes 402 N and pulls 346 N at 0.5 MPa. Keep real working force near 241 N and the cylinder will hold that output all shift without running on the edge of its rating.
Because the stainless barrel shrugs off mild corrosion and washdown, this long-travel size suits damp or outdoor machines where painted mini cylinders rust early. The U flat-end back cover bolts straight to fixed plates, and the built-in magnet - standard, not an option - lets CMSG, DMSG or EMSG switches read position anywhere along the 425 mm travel.
Airtac MAC Stainless Steel Mini Air Cylinder MAC32X425SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC32X425SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 425 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 MAC32X425SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×425 | 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 MAC32X425SU Is Used
Long-reach part extraction
Reaching deep into a stamping die to pull formed brackets on a 425 mm stroke, backed by the 402 N push at 0.5 MPa.
Cross-transfer pusher
Kicking cartons across a wide packaging conveyor where the stainless barrel stands up to daily wipe-downs.
Guard actuation on washdown lines
Opening and closing machine guards in food plants, with the variable air cushion softening every end of the 425 mm travel.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC32X425SU the Right Cylinder?
Size down to a 25 mm bore only for light guided loads (245 N push at 0.5 MPa); step up to a 40 mm bore (628 N) if friction or side loads climb. At 425 mm of stroke, guide the rod with a knuckle or external linear guide so side load never bends the 12 mm rod.
Note the plain MAC drifts when air is lost or the valve centres - add a pilot check valve or rod lock if the load must stay put. The U flat end plus FA flange or LB foot covers fixed mounting; pivot jobs should pick the CA version instead.
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 MAC32X425SU FAQ
At 0.5 MPa it pushes 402 N and pulls 346 N; at 0.7 MPa push rises to 563 N and pull to 484 N, with a theoretical maximum of 82 kgf at 1.0 MPa. The bore is 32 mm, ports are 1/8", the rod is 12 mm with M10x1.25 male thread, and speed runs 30-800 mm/s on a 0.15-1.0 MPa (22-145 psi) supply.
The MAC32X425SU has a variable air cushion at both ends. On first run, back the needle screws fully off, then close them gradually until end-of-stroke shock disappears - you can then run faster or move heavier loads without hammering the covers.
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