Airtac MAC Stainless Steel Mini Air Cylinder MAC25X220SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X220SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 220mm 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
- Stroke220 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 MAC25X220SU
A 220 mm throw inside a slim stainless tube is what the MAC25X220SU offers: 25 mm bore, double acting, and a variable air cushion at both ends. Expect 245.3 N forward and 206.1 N back at 0.5 MPa, up to 343.4 N forward at 0.7 MPa, across a 0.15-1.0 MPa (22-145 psi) supply and speeds of 30-800 mm/s.
The U flat-end back cover presents a plain fixed face for bracketed or foot-style mounting without a pivot. In washdown or outdoor service the stainless barrel and 20 um hard-chrome rod resist the corrosion that kills painted minis. Sized sensibly this bore does about 147 N of real work at 0.5 MPa - roughly a 12 kg vertical lift with room to spare - and the standard piston magnet lets a CMSG switch clip on wherever a position signal is needed.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X220SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X220SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 220 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 MAC25X220SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×220 | 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 MAC25X220SU Is Used
Tray eject on rack washer
Pushes soiled trays off a rack in a commercial wash tunnel, where stainless survives constant caustic spray.
Parcel reject kicker
Kicks small parcels onto a sortation spur at up to 800 mm/s, the air cushion absorbing the flap stop.
Press part lift-out
Lifts stamped brackets 220 mm clear of a press die, staying within the roughly 12 kg vertical capability of this bore.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X220SU the Right Cylinder?
Compare frames by push force at 0.5 MPa: 157.0 N for bore 20, 245.3 N here, 402.2 N at bore 32 - move up a size once load plus friction nears 147 N. A plain MAC drifts when the valve centres because there is no internal lock, so hang a load on a rod lock or a pilot-checked circuit instead. The U flat-end cover bolts flat to a machine face or an LB foot / FA flange bracket; add an SDB pivot only where the linkage must swivel. Over 220 mm of stroke, align the load along the rod axis to keep bending off the 10 mm piston 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 MAC25X220SU FAQ
Yes: push 245.3 N and pull 206.1 N at 0.5 MPa; push 343.4 N and pull 288.5 N at 0.7 MPa; 50.0 kgf theoretical maximum at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with proof at 1.5 MPa (215 psi), air must be filtered to 40 um, and the port is 1/8 inch.
Back both needle screws fully off, run the cylinder slowly through the 220 mm stroke, then close the needles gradually until end-of-stroke impact disappears at your working speed. The cushions are variable, not fixed bumpers, so retune them whenever load or cycle speed changes.
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