Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 400mm 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
- Stroke400 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 MAC40X400SCM
Where end-of-stroke bang is the enemy, the MAC40X400SCM fights back: 400 mm of double-acting travel on a 40 mm bore, with needle-adjustable air cushions at both ends so the load can arrive fast and stop soft. Push is 628.3 N at 0.5 MPa (about 64 kgf), climbing to 879.6 N at 0.7 MPa.
Vertically that translates to lifting about 32 kg with a 2:1 margin at 0.5 MPa. The round stainless barrel shrugs off the corrosion that eats painted-steel minis in food plants and outdoor frames, and the built-in magnet accepts CMSG / DMSG / EMSG switches straight from the box. The CM round-end back cover takes a pivot pin without extra brackets.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 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 MAC40X400SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×400 | 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 MAC40X400SCM Is Used
Carton-lid press
Presses lids onto 20 kg detergent cartons; dial the cushion needles so the 628.3 N push seats each lid without cracking flanges.
Mix-tank lid lift
Raises a 30 kg stainless mix-tank lid with margin to spare - about 32 kg of vertical lift capacity at a 2:1 ratio at 0.5 MPa.
Case diverter
Diverts corrugated cases between conveyor lanes on the 400 mm stroke, with the built-in magnet feeding a DMSG lane-confirm signal.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X400SCM the Right Cylinder?
In the 0.5 MPa push ladder - 402.2 N at 32 mm, 628.3 N here, 981.3 N at 50 mm - this bore covers mid-weight clamping and lifting jobs. If the mechanism must hold position with air off, the MAC alone will not manage it: the piston simply drifts, so spec a rod lock or pilot check valve alongside. The CM round-end cover accepts a pivot pin directly; add FA flange, LB foot or SDB pivot hardware where the frame calls for it. Long 400 mm strokes amplify any misalignment, so keep side loads off the 16 mm rod or fit external guides. The standard magnet means CMSG / DMSG / EMSG switching needs no special-order piston.
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 MAC40X400SCM FAQ
Push is 628.3 N and pull 527.8 N at 0.5 MPa; at 0.7 MPa it reaches 879.6 N push and 738.9 N pull, with a theoretical maximum of 128.1 kgf at 1.0 MPa. It runs on 0.15-1.0 MPa (22-145 psi) air and withstands 1.5 MPa (215 psi) proof pressure.
Needle screws at both ends throttle the exhaust just before the covers, so the 400 mm stroke can run faster or carry more without metal-to-metal slam. Back the needles fully off at first start-up, then close them gradually - the cushion is adjustable, not a position lock, and the piston still drifts if air is lost.
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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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