Airtac MAC Stainless Steel Mini Air Cylinder MAC40X240SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X240SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 240mm 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
- Stroke240 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 MAC40X240SCA
With 240 mm of travel, the MAC40X240SCA reaches across larger fixtures while its 40 mm bore still develops 628 N of push at 0.5 MPa (880 N at 0.7 MPa). Both ends carry a variable air cushion, so end-of-stroke shock stays tunable at speeds anywhere in the 30-800 mm/s band.
The riveted stainless barrel and 20 um hard-chrome rod handle humidity and light washdown that would blister a painted body. Count on about 377 N of dependable push at 0.5 MPa, or roughly 32 kg of vertical lift with a 2:1 safety factor built in.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X240SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X240SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 240 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 MAC40X240SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×240 | 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 MAC40X240SCA Is Used
Pallet-cell safety gate actuator
Air-assist swings open a guard gate on a palletising cell; 628 N at 0.5 MPa overcomes the latch spring across the full 240 mm arc.
Linkage-driven fixture scraper
The CA pivot end plus a Y knuckle drive a scraper arm over a 240 mm path, wiping weld spatter off a robotic fixture table each cycle.
Drop-lift for a checkweigher
Lifting about 32 kg vertically with margin, the rod raises rejected packs clear of the belt before the next carton arrives.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X240SCA the Right Cylinder?
At 628 N push / 528 N pull on 0.5 MPa, this 40 mm bore doubles the 25 mm output (245 N) and trails the 50 mm bore (981 N), so pick by load, not by looks. No air, no hold: when supply fails or the valve centres, the piston drifts, so a pilot check valve or rod lock is the fix for held positions. Pair the CA pivot end with an SDB pivot bracket or an I/Y knuckle for linkage work, or switch to FA flange / LB foot for rigid frames. With 240 mm of unsupported stroke, watch side load - external guiding protects the rod and seals.
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 MAC40X240SCA FAQ
Push 628 N / pull 528 N at 0.5 MPa; push 880 N / pull 739 N at 0.7 MPa; roughly 128 kgf theoretical peak at 1.0 MPa. Air ports are 1/8 in, rod thread M12x1.25, working pressure 0.15-1.0 MPa (22-145 psi).
It will not - the piston drifts once supply drops or the valve centres, since nothing inside locks the rod. Add a rod-lock cylinder or a pilot check valve wherever a suspended load must stay put.
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