Airtac MAC Stainless Steel Mini Air Cylinder MAC40X250SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X250SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 250mm 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
- Stroke250 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 MAC40X250SCM
Round-end CM covers give this 250 mm MAC a clean mounting face for custom fixtures and bracket plates. It is double acting with a variable air cushion at each end, so 628.3 N of extend force and 527.8 N of retract arrive smoothly even near the 800 mm/s top speed.
Only air filtered to 40 um is needed, across a 0.15-1.0 MPa (22-145 psi) band with 1.5 MPa (215 psi) proof strength. The stainless tube resists corrosion in wet or outdoor cells, and the standard magnet feeds position data to CMSG, DMSG or EMSG switches. Size continuous duty near 377 N - the practical push at 0.5 MPa - which corresponds to lifting about 32 kg vertically.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X250SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X250SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 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 MAC40X250SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×250 | 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 MAC40X250SCM Is Used
Brick bundle press
Presses stacked bricks or tiles into a bundle under a strapping head, the cushion absorbing the compression stop.
Pilot-plant gate valve
Drives a sliding gate on a pilot-plant ducting line, the magnet and EMSG switch confirming open and closed states.
Pallet accumulator stop
Stops moving pallets at a pick station with 377 N of dependable push, set well inside the 628 N rating for long service.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X250SCM the Right Cylinder?
Force check: 32 mm bores manage 402.2 N at 0.5 MPa and 50 mm bores 981.3 N, so 40 mm sits in between for mid-weight pushes. The cylinder will not park under load by itself - with no air it drifts - so specify a rod lock or pilot check valve where position must hold. The CM round end suits plate or block fixtures, while FA flange, LB foot and SDB pivot brackets cover the rest. Across a 250 mm stroke, align the load to the rod axis to avoid side-load wear.
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 MAC40X250SCM 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; and a theoretical maximum of 128.1 kgf at 1.0 MPa.
Yes. Every MAC40X250SCM includes a piston magnet as standard, so CMSG, DMSG and EMSG switch models mount straight onto the barrel - no special piston, no modification, no waiting on a custom order.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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