Airtac MAC Stainless Steel Mini Air Cylinder MAC25X500SCMH
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X500SCMH is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 500mm 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.
- BoreØ25 mm
- Stroke500 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 MAC25X500SCMH
Built around a rolled stainless-steel barrel with a hard-chrome plated rod, the MAC25X500SCMH shrugs off washdown and damp workshop air far better than painted minis. It is double acting - air drives the rod out and pulls it back - and a variable air cushion at each end soaks up the shock of a 500 mm travel so you can run toward the full 30-800 mm/s without hammering the covers. At 0.5 MPa this 25 mm bore pushes 245.3 N and pulls 206.1 N; at 0.7 MPa push climbs to 343.4 N.
Plan real work at roughly 147 N rather than the full rating. Turned vertical, 245.3 N balances about 25 kg, so with a 2:1 margin the cylinder raises roughly 12 kg cleanly. The CM round-end back cover gives a tidy fixed mounting without adapter brackets, and the built-in magnet means CMSG, DMSG or EMSG switches clip on with no special-order piston.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X500SCMH Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X500SCMH |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 500 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 (Ø25mm)
| 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.
Model Code: Airtac MAC Stainless Steel Mini Air Cylinder MAC25X500SCMH
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×500 | 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 MAC25X500SCMH Is Used
Cross-belt carton diverter
A 500 mm stroke reaches right across a conveyor lane; about 147 N of working force nudges cartons off the line at the diverter arm.
Sliding guard door drive
Slides a CNC or oven guard door through its full travel, with the air cushion catching the door gently at both ends of the 500 mm run.
Gravity-lane carton ejector
Kicks cartons sideways out of a gravity roller lane; the standard magnet lets a CMSG switch confirm eject position at end of stroke.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X500SCMH the Right Cylinder?
With 245.3 N at 0.5 MPa, size down to a bore 20 (157 N push) when the load is light or up to a bore 32 (402.2 N) when you need headroom. A 500 mm stroke is the longest standard travel for this bore; keep the rod straight and shim any side load, because a long thin rod bends before it breaks. The magnet is standard, so position switches can sit anywhere along the travel. Note that when air is cut the piston simply floats - fit a rod lock or pilot check valve if the load must stay parked.
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 MAC25X500SCMH FAQ
At 0.5 MPa the 25 mm bore pushes 245.3 N and pulls 206.1 N; at 0.7 MPa push is 343.4 N, and the theoretical ceiling is 50 kgf at 1.0 MPa. It runs on 0.15-1.0 MPa (22-145 psi), is proof tested to 1.5 MPa (215 psi), cycles at 30-800 mm/s, and carries 1/8" ports with an M10x1.25 rod thread.
Both ends carry a variable air cushion. Back the needle screws fully off before the first run, then close them gradually until end-of-stroke shock disappears; the cylinder then tolerates faster cycles or heavier moving loads without beating the aluminium covers.
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