Airtac MAC Stainless Steel Mini Air Cylinder MAC25X85SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X85SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 85mm 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
- Stroke85 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 MAC25X85SCA
The CA pivot back cover is the headline here: the MAC25X85SCA swings its 10 mm rod through an 85 mm arc without extra clevis brackets, while running as a full double-acting cylinder with a variable air cushion at each end. At 0.5 MPa expect 245.3 N on the push stroke and 206.1 N retracting.
Its riveted stainless barrel and hard-chrome plated rod stand up to coolant mist and outdoor damp that corrode painted minis. The dial-in air cushion lets you raise cycle speed or add load mass without hammering the aluminium covers, and a quick mental check shows the 245.3 N push equals about 25 kgf - halve that for a 2:1 lift margin and the rod raises roughly 12 kg vertically.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X85SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X85SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 85 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 MAC25X85SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×85 | 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 MAC25X85SCA Is Used
Tilting tray tipper
Rocks a stainless tray of machined pins through an 85 mm arc at a deburring bench; the pivot back cover tracks the swing so the rod never sees bending load.
Fatigue test pusher
Cycles a small bracket specimen back and forth in a university lab rig, where the adjustable air cushion softens each reversal and protects the fixture near the 800 mm/s top speed.
Carton flap closer
Folds the top flap on small shipping cartons at a packing table; the 206.1 N of pull at 0.5 MPa is what does the folding on the return stroke.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X85SCA the Right Cylinder?
Compare against the MAC20X85, which manages 157 N at 0.5 MPa, and the MAC32X85 at 402.2 N if the arm or gate is heavier. Because the piston drifts whenever supply air drops, add a pilot check valve or rod lock anywhere the load must stay put mid-stroke. FA flange, LB foot and SDB pivot brackets bolt on if the job outgrows the pivoting back cover, and the standard magnet accepts CMSG / DMSG / EMSG switches straight out of the box.
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 MAC25X85SCA FAQ
Push at 0.5 MPa is 245.3 N and pull is 206.1 N; raise supply to 0.7 MPa and those become 343.4 N and 288.5 N, with 50 kgf as the theoretical ceiling at 1.0 MPa. Proof pressure is 1.5 MPa (215 psi), the working band is 0.15-1.0 MPa (22-145 psi), and the 1/8" ports take standard pneumatic tubing fittings.
No - this is a plain double-acting cylinder, so the piston drifts freely once supply pressure is gone or the valve centres. For clamps or vertical arms that must stay put, add a rod lock cylinder or a pilot check valve in the line, and remember the air cushion only softens end-of-stroke shock, it never acts as a brake.
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