Airtac MAC Stainless Steel Mini Air Cylinder MAC40X500SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X500SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 500mm 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
- Stroke500 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 MAC40X500SCM
With a full 500 mm of travel, this 40 mm round-body cylinder reaches 628 N of push and 528 N of pull at 0.5 MPa, climbing toward 880 N at 0.7 MPa. Double acting throughout, it decelerates the piston at each end through adjustable needle screws, so long fast strokes need not hammer the aluminium covers.
The CM round-end back cover accepts pivot pins directly, saving adapter plates on linkage-driven machines. Inside, the two-material piston seal doubles as a grease store, stretching service intervals. As a sizing shortcut, count on around 377 N of genuine working force at 0.5 MPa - equivalent to hoisting some 32 kg against gravity on a 2:1 margin.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X500SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X500SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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 MAC40X500SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×500 | 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 MAC40X500SCM Is Used
Textile yarn traverse
Yarn-guide traverse on spinning frames, where the CM round-end cover ties straight into the machine's own pivot pin.
Case former pusher
Squaring blank cartons in a case former at up to 377 N effective force, with cushions softening the return against the home position.
Welding fixture positioner
Long-stroke positioning of welding fixtures on a fabrication line; EMSG switches read both stroke ends via the factory magnet.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X500SCM the Right Cylinder?
Downsize to the 25 mm bore (245 N at 0.5 MPa) when 628 N is overkill, or move to the 63 mm bore (1558 N) for serious mass. The piston will coast if air pressure drops, since a standard MAC has no internal lock - add a rod lock cylinder or external pilot check valve where position must be kept. Threads come as PT here, with G or NPT order codes for other regions. Because the 16 mm rod spans 500 mm, mount the CM end into a guided fixture rather than letting the rod carry side thrust.
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 MAC40X500SCM 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. The maximum theoretical output is 128.1 kgf at 1.0 MPa. Supply 0.15-1.0 MPa (22-145 psi) and never exceed the 1.5 MPa (215 psi) proof limit.
The round end accepts pivot pins and custom linkages without extra brackets, which keeps fixture design simple on long machines. Combined with the stainless barrel and hard-chrome rod it also wipes down easily in dusty textile or packaging environments.
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1-Year Warranty
Covers non-human-caused product damage.
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