Airtac MAC Stainless Steel Mini Air Cylinder MAC40X30SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X30SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 30mm 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
- Stroke30 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 MAC40X30SU
Fixed-mount simplicity defines the MAC40X30SU: a 40 mm bore, 30 mm stroke and a flat U back cover that bolts straight onto a plate with no adapters. Air extends and retracts the rod, 628 N of push at 0.5 MPa, and twin variable air cushions tame the end stop.
Construction is the classic mini recipe done right - a rolled stainless-steel barrel with aluminium covers and a hard-chrome plated 16 mm rod that shrugs off corrosion in damp corners of the plant. In practice that means about 377 N of usable push at 0.5 MPa, or a 32 kg vertical lift with a 2:1 safety margin.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X30SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X30SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 MAC40X30SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 MAC40X30SU Is Used
Lid-tuck pusher on a blister pack line
Folds trailing lids flat as blisters pass; the flat-end cover mounts between guard rails, and the cushioned stops keep the tuck gentle.
Lift pin under a CNC machining fixture
Raises a part-eject pin 30 mm at cycle end; 628 N at 0.5 MPa lifts chips-stuck parts cleanly, with an EMSG switch confirming pin-up.
Guard gate latch on a washdown filler
Throws the interlock latch on a hinged guard; the stainless barrel and chrome rod shrug off daily hose-down around the filler bowl.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X30SU the Right Cylinder?
Size check: the 32 mm bore offers 402 N at 0.5 MPa for loads under 240 N, while the 50 mm at 981 N steps up for fixtures over 580 N. This 40 mm unit crosses its 30 mm stroke at up to 800 mm/s. It will not pin a load against gravity or a spring once air is vented, so plan a rod lock for that case. The flat U back face seats directly on a plate; FA flange or LB foot brackets are alternatives, and the built-in magnet reads position via CMSG, DMSG or EMSG switches.
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 MAC40X30SU FAQ
At 0.5 MPa: 628 N push, 528 N pull. At 0.7 MPa: 880 N push. Theoretical maximum at 1.0 MPa is 128 kgf. Ports are 1/8", rod is 16 mm with M12x1.25 thread, and operating pressure is 0.15-1.0 MPa (22-145 psi).
Back both cushion needle screws fully off, run the cylinder slowly through its 30 mm stroke, then close them gradually until end-of-stroke knock disappears. Keep speed within 30-800 mm/s and remember the cushions absorb shock - they are not a brake that holds the rod.
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