Airtac MAC Stainless Steel Mini Air Cylinder MAC25X440SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X440SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 440mm 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
- Stroke440 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 MAC25X440SCM
A 440 mm reach with 25 mm of bore is the MAC25X440SCM formula: double acting, adjustable air cushions at both ends, running at 0.15-1.0 MPa (22-145 psi) with rod speeds of 30-800 mm/s. Its stainless round body is riveted into one sealed unit, and the hard-chrome plated rod keeps rust out of wet plants and outdoor equipment.
Force at this bore is 245 N push and 206 N pull at 0.5 MPa, climbing to 343 N at 0.7 MPa with 50 kgf available at 1.0 MPa. Budget about 147 N for the actual job, roughly a 12.5 kg vertical lift at a 2:1 margin. The round-end CM back cover ships as shown, and the standard built-in magnet accepts CMSG, DMSG and EMSG switches out of the box.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X440SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X440SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 440 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 MAC25X440SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×440 | 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 MAC25X440SCM Is Used
Roller-gate latch on a sortation line
Opens a 440 mm swing gate between roller sections, with the cushion letting the arm stop quietly at full travel.
Scrap chute diverter at a press shop
Flips sheet-metal offcuts between two bins; 245 N at 0.5 MPa is ample for a lightweight flap and linkage.
Cover lift on a benchtop test rig
Raises a hinged protective cover on a lab fixture, and the built-in magnet signals open and closed via CMSG switches.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X440SCM the Right Cylinder?
For lighter duties a 20 mm MAC at 157 N is the smaller choice; where 402 N is needed at 0.5 MPa, step up to the 32 mm bore. Remember a plain MAC holds nothing on air failure or a centred valve - the piston drifts, so a rod lock or pilot check valve is the fix for suspended loads. Mount via the CM round-end cover or bolt on FA flange, LB foot or SDB pivot hardware; the magnet is standard, so position switching needs no special piston. At 440 mm of travel, misalignment shows up fast, so align couplings carefully and keep side loading off the 10 mm rod.
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 MAC25X440SCM FAQ
Expect 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push at 0.7 MPa, and 50 kgf theoretical at 1.0 MPa on this double-acting 25 mm bore. Ports are 1/8", the rod thread is M10x1.25, operating pressure spans 0.15-1.0 MPa (22-145 psi) and proof is 1.5 MPa (215 psi).
The riveted stainless tube and hard-chrome carbon-steel rod resist mild corrosion and survive washdown and damp outdoor air that swells paint and pits ordinary barrels. The aluminium covers stay light, and the two-way piston seal holds grease to extend service intervals.
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