Airtac MAC Stainless Steel Mini Air Cylinder MAC25X135SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X135SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 135mm 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
- Stroke135 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 MAC25X135SU
The U flat-end back cover of the MAC25X135SU sits flush against a machine plate, so the 135 mm stroke stays inside a tight envelope with no bracket between cylinder and frame. Double acting on both sides of a 25 mm piston, it extends with 245.3 N at 0.5 MPa, and the variable air cushion at each stroke end lets you run quick cycles without hammering the covers.
Inside the rolled stainless barrel, a grease-retaining two-way piston seal and a 20 um hard-chrome rod keep friction low and corrosion at bay, even in humid plants that defeat coated minis. The magnet is part of the standard build, so a CMSG or EMSG switch clips on for stroke signals the day it arrives. In round numbers, plan on roughly 147 N of usable push at 0.5 MPa, about the force needed to index a 15 kg carriage on a low-friction slide.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X135SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X135SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 135 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 MAC25X135SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×135 | 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 MAC25X135SU Is Used
Flap tucker on a carton closer
Folding carton flaps through the last 90 degrees at about 150 N effective force, with a CMSG switch confirming each fold before the glue head fires.
Sample elevator in an analyzer
Lifting a light rack of sample vials inside a clinical analyzer housing, sized from the roughly 12 kg vertical lift figure with a 2:1 margin.
Gate actuator at a filtration skid
Actuating a small gate valve in a damp treatment skid, where the stainless barrel shrugs off the constant splash that rusts painted mini cylinders.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X135SU the Right Cylinder?
Compare the 20 mm bore at 157.0 N and the 32 mm bore at 402.2 N (both 0.5 MPa push): this 25 mm model is the mid-band choice when a 135 mm reach and moderate force meet. Cut the air and the rod simply floats, so anything that must stay parked needs a pilot check valve or rod lock in the circuit. The flat U end favors fixed face mounting, with FA flange or LB foot hardware available if the frame calls for a different interface, and long travel like this argues for external guiding to protect the 10 mm rod from side loads.
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 MAC25X135SU FAQ
Push is 245.3 N and pull 206.1 N at 0.5 MPa, rising to 343.4 N and 288.5 N at 0.7 MPa, with a theoretical ceiling of 50.0 kgf at 1.0 MPa. The cylinder takes 0.15-1.0 MPa (22-145 psi) working pressure, survives 1.5 MPa (215 psi) proof, moves the rod at 30-800 mm/s and ports air through 1/8".
Included. Every MAC piston carries a built-in magnet as standard, so CMSG, DMSG and EMSG switches mount directly on the stainless barrel for end-of-stroke or mid-stroke signals - no special-order piston, no sensor kit to buy separately.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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