Airtac MAC Stainless Steel Mini Air Cylinder MAC25X135SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X135SCA 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 MAC25X135SCA
A clevis-style CA pivot on the back cover lets the MAC25X135SCA articulate through its 135 mm stroke, useful where the rod must follow a swinging lever or hopper gate. Under that pivot sits the familiar MA build: stainless barrel, chrome-plated 10 mm rod, rolled aluminium covers. Double acting with a variable air cushion at each end, the 25 mm bore makes 245.3 N extending and 206.1 N retracting at 0.5 MPa.
Keep real duty near 147 N at 0.5 MPa and the seals will thank you over the long run. Both needle cushions absorb the snap as you push speed up inside the 30-800 mm/s band, and the standard-fit magnet feeds position signals to CMSG, DMSG or EMSG switches along the barrel. One caution: centre the valve and the rod coasts - this design holds nothing without air, so spec a rod lock where a gate must stay put.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X135SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X135SCA |
|---|---|
| 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 MAC25X135SCA
| 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 MAC25X135SCA Is Used
Hopper slide gate
The CA pivot tracks the gate arc on a blending hopper; about 147 N of usable thrust cracks the slide open without jamming.
Filling-carousel lid kicker
Tips unsealed lids off in one 135 mm sweep, driven by 245.3 N at 0.5 MPa and a cushion tuned to catch the falling lid.
Conveyor swing stop
Indexes pallets against a pivoting stop that retracts 135 mm clear of the path; CMSG switches confirm stop-up and stop-down.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X135SCA the Right Cylinder?
The 25 mm bore lands between the 157.0 N of a 20 mm cylinder and the 402.2 N of a 32 mm unit at 0.5 MPa, which suits medium gate and lever work. Over 135 mm the rod sees bending moment whenever the load hangs off-axis; a pivot mount absorbs some misalignment, and external guiding handles the rest. Back covers come as CA pivot, U flat-end or CM round-end, with FA flange, LB foot or SDB bracket mounting on the same body. Pressure window is 0.15-1.0 MPa (22-145 psi) against 1.5 MPa (215 psi) proof.
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 MAC25X135SCA FAQ
At 0.5 MPa: 245.3 N extend, 206.1 N retract. At 0.7 MPa: 343.4 N extend, 288.5 N retract. Theoretical peak is about 50 kgf at 1.0 MPa. Ports are 1/8" PT as standard (G and NPT optional), rod thread M10x1.25, rod 10 mm, with variable cushioning at both ends.
The pivot eye lets the cylinder swing with linkages that would side-load a fixed mount, and it bolts to the same stainless barrel as the U and CM covers. The piston magnet is standard, so CMSG or DMSG switches read both end positions out of the box.
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