Airtac MAC Stainless Steel Mini Air Cylinder MAC40X300SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X300SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 300mm 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
- Stroke300 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 MAC40X300SCA
A 40 mm bore in AirTAC's riveted round-body format, the MAC40X300SCA is double acting - air pushes the rod out and pulls it back - with a variable air cushion at each end to soak up stop shock. At 0.5 MPa it pushes 628.3 N and pulls 527.8 N; size your real duty around 377 N of that rating so guides and mounts keep a genuine margin. Run it anywhere from 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
The 300 mm stroke rides on a 16 mm hard-chrome steel rod inside a stainless barrel, so washdown water and humid air leave the body unmarked - a clear edge over painted mini cylinders in damp plants. The CA pivot back cover swings on a pin without extra brackets, and the magnet is already built into the piston, so CMSG, DMSG or EMSG switches clip straight on.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X300SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X300SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 300 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 MAC40X300SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×300 | 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 MAC40X300SCA Is Used
Fixture clamp-and-feed arm
Pinned to a pivot plate, it swings aluminium gearbox housings 300 mm into a CNC fixture, cushioning the seat so the casting never rings.
Packaging line gate kicker
The CA cover hangs on a frame pin and deflects cartons off a takeaway belt at up to 800 mm/s without end-of-stroke bang.
Pivot lid lift on a curing oven
Its about 377 N of practical push raises a hinged oven lid with margin to spare, while a DMSG switch confirms open and closed positions.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X300SCA the Right Cylinder?
A step down to a 32 mm bore saves space but only gives 402.2 N at 0.5 MPa; a step up to 50 mm delivers 981.3 N when the load grows. Ports are 1/8" on this bore and the male rod thread is M12x1.25. Remember the cylinder is not self-locking - when air is removed the piston drifts, so fit a rod lock or pilot check valve wherever the load must stay put.
The CA pivot cover pairs naturally with a pinned linkage; add an FA flange or LB foot if the body needs fixing, and an I or Y knuckle for the rod end. At 300 mm on a 16 mm rod, keep side loads low and guide the load externally to protect the barrel.
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 MAC40X300SCA FAQ
At 0.5 MPa it pushes 628.3 N and pulls 527.8 N; at 0.7 MPa the figures rise to 879.6 N push and 738.9 N pull. The theoretical maximum at 1.0 MPa is 128.1 kgf. Retraction always trails extension because the rod steals piston area.
The CA cover gives you a built-in pivot eye, so the cylinder swings on a pin with no extra bracket - useful on linkages and gates. The cushion screws at both ends are adjustable, so back them off fully on first run and close them gradually until the stop runs quiet.
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