Airtac MAC Stainless Steel Mini Air Cylinder MAC40X265SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X265SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 265mm 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
- Stroke265 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 MAC40X265SCA
Need 5 mm more reach than a standard 260? The MAC40X265SCA keeps the 40 mm bore's 628.3 N push at 0.5 MPa but stretches the stroke to 265 mm, still inside the 500 mm standard limit for this bore. Double acting by design, it cushions with air at both ends - the cushion is variable, so back the screws off at commissioning and close them gradually until the stroke lands quietly.
Build quality is where this mini earns its keep: a rolled stainless barrel with a hard-chrome plated rod that shrugs off coolant mist and outdoor damp. Treat roughly 377 N as the practical working force at 0.5 MPa, enough to raise about 32 kg against gravity with a 2:1 margin. The CA pivot back cover takes a clevis pin directly, and the standard magnet pairs with CMSG, DMSG or EMSG switches.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X265SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X265SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 265 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 MAC40X265SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×265 | 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 MAC40X265SCA Is Used
Tester probe stroke
Driving a leak-test probe 265 mm into a casting port, with air cushioning decelerating the probe before it seats on the seal face.
AGV battery latch
Operating the latch on an AGV battery dock; the CA pivot cover links straight to the latch arm through a clevis pin.
Case fold pusher
Folding bottom case flaps on a cartoner, using 628 N of push at 0.5 MPa to seat stubborn flaps without hammering the frame.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X265SCA the Right Cylinder?
Compare against neighbours before committing: the 32 mm bore offers 402.2 N at 0.5 MPa for lighter duties, while the 50 mm bore lifts output to 981.3 N for heavier pressing. Because an unpowered MAC piston drifts, specify a rod lock or pilot check valve whenever the load must hold with air off. The CA pivot cover plus an SDB bracket forms a clevis mount; FA flange and LB foot serve fixed frames. Over a 265 mm stroke, keep external guides carrying any side force so the 16 mm rod works only along its axis.
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 MAC40X265SCA FAQ
Push 628.3 N and pull 527.8 N at 0.5 MPa; push 879.6 N and pull 738.9 N at 0.7 MPa; 128.1 kgf theoretical maximum at 1.0 MPa. The 40 mm bore carries a 16 mm rod, 1/8" ports and M12x1.25 rod thread, with working pressure 0.15-1.0 MPa (22-145 psi). The 265 mm stroke sits within the 500 mm standard limit for this bore; longer strokes are made to order.
At the end of each direction, air trapped in the cushion chamber bleeds through an adjustable needle. Open both screws fully at first run, then close them step by step to slow the last few millimetres. This lets the cylinder run anywhere in the 30-800 mm/s band without hammering the aluminium covers on heavy loads.
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