Airtac MAC Stainless Steel Mini Air Cylinder MAC40X155SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X155SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 155mm 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
- Stroke155 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 MAC40X155SCA
With a pivoting CA back cover already fitted, the MAC40X155SCA swings into linkages and lever arms without extra brackets, while its 155 mm stroke covers wide part pitch. The 40 mm stainless barrel delivers 628.3 N extend and 527.8 N retract at 0.5 MPa, and the cushion needles at both ends let you tune deceleration up to the 800 mm/s speed limit.
Because 0.6 times the rated push is about 377 N, treat that as the working ceiling for pressing or clamping at 0.5 MPa; full output climbs to 879.6 N at 0.7 MPa. The rolling-packed stainless tube with a hard-chrome plated 16 mm rod stands up to outdoor and food-area humidity, and the standard magnet feeds position signals to CMSG, DMSG or EMSG switches.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X155SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X155SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 155 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 MAC40X155SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×155 | 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 MAC40X155SCA Is Used
Weld cell clamp arm
The CA pivot swings a lever clamp over the seam and holds 628 N of squeeze at 0.5 MPa through the weld cycle.
Case diverter gate
A 155 mm throw pushes cartons onto the spur line; the end cushions let the gate cycle fast without rattling the frame.
Pallet carton plough
Sweeps misaligned boxes square before stretch-wrapping; 377 N of usable push at 0.5 MPa clears everyday offsets.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X155SCA the Right Cylinder?
Check both directions of your sizing: downward at a 32 mm bore (402.2 N at 0.5 MPa) and upward at a 50 mm bore (981.3 N) - the 40 mm class in between gives 628.3 N. The CA pivot back cover mates straight to rod knuckles (I or Y) for swinging linkages, while FA flange, LB foot or SDB pivot brackets handle fixed installs. Because a plain cylinder drifts the moment air is removed, fit a pilot check valve or rod lock whenever the load must stay parked. At 155 mm of travel, guide the load externally so bending never loads the chrome rod sideways.
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 MAC40X155SCA FAQ
Push at 0.5 MPa is 628.3 N, pull 527.8 N; at 0.7 MPa expect 879.6 N push and 738.9 N pull, with 128.1 kgf the theoretical ceiling at 1.0 MPa. Pressure range is 0.15-1.0 MPa (22-145 psi) and proof is 1.5 MPa (215 psi).
The CA pivot back cover takes a clevis pin directly for swinging linkages. For fixed installs choose an FA flange, LB foot or SDB pivot bracket, and add I or Y rod knuckles on the rod side. Thread options are PT (blank code), G or NPT.
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