Airtac MAC Stainless Steel Mini Air Cylinder MAC25X80SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X80SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 80mm 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
- Stroke80 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 MAC25X80SU
A double-acting round-body mini cylinder with a variable air cushion at both ends, the MAC25X80SU moves its 10 mm rod through an 80 mm stroke on air alone - there is no spring return. At 0.5 MPa it pushes 245.3 N and pulls 206.1 N, enough muscle for ejecting bushings, clamping light fixtures or actuating small gates.
The riveted stainless barrel and hard-chrome plated rod shrug off washdown and damp shop air far better than painted-steel minis. Plan real work at roughly 147 N rather than the full 245.3 N rating, and note the rod lifts about 12 kg vertically with a 2:1 margin - so a loaded 8 kg nest sits well inside its comfort zone.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X80SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X80SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 80 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 MAC25X80SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×80 | 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 MAC25X80SU Is Used
Drilling fixture ejector
Kicks finished aluminium bushings out of a drill jig after each cycle; the 80 mm stroke clears the nest and 245.3 N of push at 0.5 MPa seats the part against the stop without marring it.
Sorting gate pusher
Swings a deflector gate on a small-parts conveyor to route rejected nylon fittings into a bin, with the both-end air cushion absorbing the gate's momentum at each stop.
Bench dowel press
Presses wooden dowels into chair legs at a furniture workshop; about 147 N of practical working force at 0.5 MPa is ample for glued joints in softwood.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X80SU the Right Cylinder?
Size down to the MAC20X80 (157 N push at 0.5 MPa) for lighter cycles, or step up to the MAC32X80 (402.2 N) when a fixture needs more clamping force. A plain double-acting MAC does not hold position when air is lost - the piston drifts - so fit a rod lock or pilot check valve on any held load. The U flat-end back cover bolts to fixed plates without an adapter, and every unit ships with a built-in magnet ready for CMSG, DMSG or EMSG switches. Keep the rod coupling aligned to limit side load across the 80 mm stroke.
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 MAC25X80SU FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa push rises to 343.4 N and pull to 288.5 N, with a theoretical maximum of 50 kgf at 1.0 MPa. The 25 mm bore runs on 0.15-1.0 MPa (22-145 psi) of 40 um filtered air, works from -20 to +70 C at 30-800 mm/s, and has 1/8" ports with an M10x1.25 male rod thread on a 10 mm rod.
The U flat-end back cover lets you bolt the cylinder straight to a machine plate, and the magnet is already fitted as standard - no special piston needed - so CMSG, DMSG or EMSG reed switches clamp on the barrel to signal end positions. On first start-up, back the cushion needle screws off fully and open them gradually to tune the both-end air cushion.
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