Airtac MAC Stainless Steel Mini Air Cylinder MAC40X75SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X75SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 75mm 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
- Stroke75 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 MAC40X75SCA
Need a little more travel than the common 70 mm? The 75 mm stroke of this CA-pivot MAC keeps the 40 mm bore's 628 N push and 528 N pull at 0.5 MPa, comfortably above the 245 N of a 25 mm unit. Double-acting air powers both directions, and the variable cushion at each end is turned in on commissioning - back the needles off, then close them until the load lands soft.
Its riveted stainless round barrel and hard-chrome 16 mm rod take food splash and humid cells in stride where painted minis blister. At 0.5 MPa the rod can raise about 64 kg vertically; with a 2:1 margin plan on roughly 32 kg of real lifted weight. The magnet comes standard, so CMSG, DMSG or EMSG switches mount without special orders.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X75SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X75SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 MAC40X75SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 MAC40X75SCA Is Used
CNC enclosure door
A sliding guard door on a CNC cell opens its 75 mm latch travel off the CA pivot eye; 628 N at 0.5 MPa swings the interlock lever while the magnet-fed EMSG switch proves full-open before spindle start.
Welding jig clamp swing
Swing clamps on a tube welding fixture rotate clear of the loader's path; the pivot mount tracks the lever and the tuned cushion stops the clamp arm cracking into its stop at cycle rate.
Bakery tray pusher
On a tray line stacking baked-goods trays, the 75 mm stroke indexes one tray pitch per signal and about 377 N of working push at 0.5 MPa handles loaded steel trays without jarring the stack.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X75SCA the Right Cylinder?
Weigh it against the 32 mm bore at 402 N (0.5 MPa push) for shorter, lighter swings or the 50 mm bore at 981 N for heavy doors. The CA pivot eye pairs with FA flange, LB foot or SDB brackets; for pure fixed pushes the U or CM back covers may suit better. A standard MAC cannot park a load - with the valve centred the piston drifts - so add a rod lock or pilot check valve where position must persist. Ports 1/8", rod thread M12x1.25, pressure 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
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 MAC40X75SCA FAQ
Push 628 N and pull 528 N at 0.5 MPa; push 880 N and pull 739 N at 0.7 MPa; theoretical peak 128 kgf at 1.0 MPa. Bore 40 mm, stroke 75 mm, 16 mm rod with M12x1.25 thread, 1/8" ports, pressure 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, adjustable cushion at both ends.
Not by itself - a double-acting MAC with no pilot check or rod lock drifts as soon as air is vented or the valve centres. The end cushion only softens deceleration; it is not a brake. For raised or clamped loads that must persist, add a pilot-operated check valve or specify a rod-lock variant.
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