Airtac MAC Stainless Steel Mini Air Cylinder MAC40X135SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X135SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm 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.
- BoreØ40 mm
- Stroke135 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X135SCA
Swinging links and toggle mechanisms are home ground for the MAC40X135SCA, whose CA back cover carries a pivot eye that tracks the linkage arc without bolted-on brackets. The 40 mm bore turns 0.5 MPa into 628 N of push and 528 N of pull, and 0.7 MPa into 880 N, from a double-acting body with a variable air cushion at both ends.
Inside sits a rolled stainless barrel with a hard-chrome plated 16 mm rod - a pairing that shrugs off washdown mist and mild corrosion where painted minis bubble. Size continuous duty around 377 N, six tenths of the 628 N rating, which is pressing or lifting power of roughly 38 kg without straining the seals. The magnet is built in, so CMSG / DMSG / EMSG switches drop straight on.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X135SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X135SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 135 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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 MAC40X135SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | 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 MAC40X135SCA Is Used
Toggle clamp on a welding fixture
Closing a toggle linkage over car door skins; the pivot eye removes bracket fabrication and 628 N clamps through the 135 mm stroke.
Hopper gate on a weighing line
Opening and closing a slide gate above a bagging scale, with the cushion calming the gate as it seats.
Rocker arm on a paint-mix tumbler
Rocking a small mixing drum end over end; the pivot cover swings with the mechanism while the magnet marks end positions.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X135SCA the Right Cylinder?
Against its neighbours, the 40 mm class makes sense when a 32 mm bore (402 N at 0.5 MPa) feels thin but a 50 mm bore (981 N) is overkill; keep the sustained load near 377 N. Ports are 1/8" throughout bores 20 to 40 and the male rod thread is M12x1.25.
A centred valve or a lost air line sets the piston free, so where position must persist fit a rod lock or pilot check valve rather than trusting the cushion - it is a shock absorber, not a brake. The CA pivot pairs naturally with an SDB pivot bracket, while FA flange and LB foot anchor fixed frames. Guide the load externally if the 135 mm stroke carries real side force.
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 MAC40X135SCA FAQ
Extension force 628 N and retraction 528 N at 0.5 MPa; 880 N and 739 N at 0.7 MPa; about 128 kgf theoretical peak at 1.0 MPa. Bore 40 mm, stroke 135 mm, 1/8" ports, M12x1.25 rod thread, speed 30-800 mm/s, pressure 0.15-1.0 MPa (22-145 psi).
No. Every MA-family cylinder, this one included, ships with the piston magnet already fitted, so CMSG / DMSG / EMSG switches mount on the barrel at any time for position detection - no special-order piston, no rebuild.
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