Airtac MAC Stainless Steel Mini Air Cylinder MAC25X140SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X140SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 140mm 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
- Stroke140 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 MAC25X140SCA
Where a linkage swings, the MAC25X140SCA's CA pivot back cover takes the mounting pin directly and saves you a fabricated bracket. The 25 mm bore turns 0.5 MPa supply into 245.3 N of extend force and 206.1 N of retract force over a 140 mm stroke, while needle-screw cushions at both ends tune the deceleration as cycle speeds climb.
A 245.3 N push is roughly 25 kgf, so with a 2:1 margin you can count on lifting about 12 kg vertically at 0.5 MPa - a useful yardstick when matching this cylinder to a real part weight. The riveted stainless barrel and hard-chrome plated rod shrug off splash and humidity, the standard magnet accepts DMSG or CMSG switches without special ordering, and the whole package runs 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X140SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X140SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 140 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 MAC25X140SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×140 | 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 MAC25X140SCA Is Used
Index-arm assist on an SMT loader
A pivot-mounted arm indexing small component pallets, the CA pin tracking the arc so the rod never fights a misaligned swing, cushions damping each stop.
Tote-tip station at a packing bench
Tipping picking totes toward the operator on a bench fixture, sized around the 12 kg vertical-lift margin for heavier loaded bins.
Case squarer before strapping
Squaring corrugated cases on a strapper infeed with 245 N of hold force at 0.5 MPa, an EMSG switch verifying the arm reached the fully squared position.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X140SCA the Right Cylinder?
The 20 mm bore (157.0 N at 0.5 MPa) handles lighter link arms and the 32 mm bore (402.2 N) suits heavier stamping heads; this 25 mm size sits between them for mid-weight pivot mechanisms. With no air applied the piston coasts freely, so a gravity load on a swinging arm calls for a pilot check valve or a positive external lock. Complete the pivot chain with an SDB bracket and an I or Y rod knuckle, note that 140 mm of travel amplifies any side load on the 10 mm rod, and use the built-in magnet with an EMSG switch to confirm the arm is home.
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 MAC25X140SCA FAQ
Extend 245.3 N and retract 206.1 N at 0.5 MPa; extend 343.4 N and retract 288.5 N at 0.7 MPa; theoretical maximum 50.0 kgf at 1.0 MPa. Working pressure 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-800 mm/s, 1/8" air port, 10 mm rod threaded M10x1.25, stroke 140 mm with 500 mm standard for this bore.
Back both cushion needle screws fully off, then close them gradually while cycling until the load stops crisply at each end without bounce. The MAC cushion is variable, not fixed, so retune it whenever speed or load changes; keep the rod within the 30-800 mm/s band for stable cushioning.
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