Airtac MAC Stainless Steel Mini Air Cylinder MAC40X55SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X55SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 55mm 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
- Stroke55 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 MAC40X55SCA
At just 55 mm of stroke, the MAC40X55SCA is a short-thrust workhorse: 628 N forward and 528 N back at 0.5 MPa, climbing to 880 N at 0.7 MPa, with a theoretical ceiling of 128 kgf at 1.0 MPa. Short cushioned strokes like this are where the variable air cushion earns its keep - dial the needles in and even a fast 800 mm/s stop lands soft.
Both covers and the stainless block are rolled onto the barrel, a one-piece feel that survives vibration better than screwed-together minis, and the fitted magnet reads through CMSG / DMSG / EMSG switches without any modification.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X55SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X55SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 55 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 MAC40X55SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×55 | 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 MAC40X55SCA Is Used
Clutch engagement
Engages a small machine clutch with a 55 mm throw; 628 N at 0.5 MPa holds the friction plates firmly without oversizing the cylinder.
Part lift off nests
Lifts machined housings clear of locating nests after a drilling cycle - about 32 kg vertical capacity keeps a 2:1 margin on 15 kg parts.
Chute divert gate
Flips a divert gate on a parts chute; the short cushioned stroke snaps the gate over briskly at up to 800 mm/s without slamming.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X55SCA the Right Cylinder?
For lighter duty, the 32 mm bore offers roughly 402 N push at 0.5 MPa; for heavier work, the 50 mm bore delivers 981 N - this 40 mm cylinder sits in between at 628 N. At 55 mm stroke the rod stays short and stiff, so side-load worries are minimal compared with the 500 mm-plus builds. It will not hold position on lost air - the piston simply coasts - so spec a rod lock or check valve for suspended loads. CA pivot back cover, FA / LB / SDB mount options, magnet fitted as standard for switch sensing.
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 MAC40X55SCA FAQ
Figures for the 40 mm bore: 628 N push and 528 N pull at 0.5 MPa, 880 N push and 739 N pull at 0.7 MPa, and a theoretical maximum of 128 kgf at 1.0 MPa. Speed range is 30-800 mm/s, pressure 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof, 1/8" ports and an M12x1.25 male rod thread on the 16 mm rod.
Yes - the magnet is built into the piston as standard, so CMSG, DMSG and EMSG reed or electronic switches drop straight onto the stainless barrel without ordering a special version. The 55 mm stroke still leaves room to sense both extended and retracted positions on one body.
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1-Year Warranty
Covers non-human-caused product damage.
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