Airtac MAC Stainless Steel Mini Air Cylinder MAC40X40SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X40SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 40mm 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
- Stroke40 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 MAC40X40SCA
A short-stroke 40 mm bore unit built for tight fixtures, the MAC40X40SCA is double acting - air drives the rod out and back - with a variable air cushion at each end. The stainless round barrel pairs with a hard-chrome plated rod to shrug off washdown and humid air, an edge painted mini cylinders lose quickly, and the CA pivot back cover lets a link swing through its arc without extra brackets.
It runs on 0.15-1.0 MPa (22-145 psi) filtered air at 30-800 mm/s. At 0.5 MPa the bore pushes 628.3 N, which is roughly a 377 N working budget once you keep a 40% reserve - enough to lift about 32 kg vertically. The built-in magnet is standard, so CMSG, DMSG or EMSG switches drop straight on.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X40SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X40SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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 MAC40X40SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×40 | 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 MAC40X40SCA Is Used
Short-stroke jig clamping
Clamping a machined blank in a CNC fixture where 40 mm of travel is all the clearance allows - the CA pivot swings the clamp arm out of the loading path.
Carton reject pusher
Kicking mislabelled cartons off a packaging conveyor; 628 N at 0.5 MPa is ample for light cartons over a 40 mm kick.
Benchtop marking press
Driving the strike on a small dot-peen or number stamp fixture, with the end cushion absorbing the blow at bottom of stroke.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X40SCA the Right Cylinder?
For more muscle step up to the 50 mm bore (981 N push at 0.5 MPa); for a lighter, cheaper fixture the 25 mm bore (245 N) may do. This cylinder does not hold position - with the valve centred or air lost the rod drifts, so fit a rod lock or pilot check valve where a load must stay put. Bolt on FA flange, LB foot or SDB pivot brackets as the frame demands; PT ports are standard, G or NPT to order, and I or Y rod knuckles complete the linkage.
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 MAC40X40SCA FAQ
At 0.5 MPa it pushes 628.3 N and pulls 527.8 N; at 0.7 MPa those figures become 879.6 N push and 738.9 N pull, with a theoretical maximum of 128.1 kgf at 1.0 MPa. Supply pressure is 0.15-1.0 MPa (22-145 psi) and speed range is 30-800 mm/s.
The barrel is stainless steel and the rod hard-chrome plated carbon steel, so mild corrosion and washdown mist are far less of a problem than on painted minis. A magnet is built in as standard, so CMSG, DMSG and EMSG switches can be fitted without any special-order piston.
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