Airtac MAC Stainless Steel Mini Air Cylinder MAC40X50SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X50SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 50mm 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
- Stroke50 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 MAC40X50SU
For damp corners and outdoor rigs where painted minis corrode, the MAC40X50SU brings a stainless barrel, a chrome-plated 16 mm rod and rolled-on covers in a compact round body. It is double acting with a variable cushion at each end, delivering 628.3 N forward and 527.8 N return at 0.5 MPa shop air.
Lift planning is simple: the 628.3 N rating converts to about 64 kg of raw thrust, so halving it gives a dependable 32 kg vertical lift per cylinder. The U flat-end back cover bolts flush to fixed machine faces with no brackets, and CMSG, DMSG or EMSG switches read position straight off the standard built-in magnet.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X50SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X50SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 MAC40X50SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 MAC40X50SU Is Used
Rinse-valve lever actuator
Trips a rinse-valve lever in a food plant wash bay, where the stainless body shrugs off daily hose-down.
Carton transfer pop-up
Pops cartons up 50 mm at a transfer point, with 628.3 N at 0.5 MPa leaving headroom for sticky guide rails.
CNC pallet pool indexer
Indexes fixtures across a CNC pallet pool, with cushioned landings keeping the 30-800 mm/s cycles quiet.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X50SU the Right Cylinder?
Step down to the 25 mm bore (245.3 N at 0.5 MPa) for light parts or up to the 63 mm bore (1557.9 N) for heavy clamps - this 40 mm sits between them at 628.3 N. Ports are 1/8", rod thread M12x1.25, and the 50 mm stroke sits well inside the 500 mm standard range. Bear in mind the rod coasts if air pressure drops, so a pilot check valve or rod lock is the fix when a load has to stay held.
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 MAC40X50SU FAQ
At 0.5 MPa: 628.3 N push and 527.8 N pull. At 0.7 MPa: 879.6 N push and 738.9 N pull. Theoretical maximum at 1.0 MPa is 128.1 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed range 30-800 mm/s.
The U back cover presents a flat, plain end face that bolts directly against a fixed machine surface without a separate mounting bracket. If the design later needs a flange, foot or pivot, FA flange, LB foot and SDB pivot brackets can be added to the same cylinder.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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