Airtac MAC Stainless Steel Mini Air Cylinder MAC25X450SUH
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X450SUH is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 450mm 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.
- BoreØ25 mm
- Stroke450 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X450SUH
Few mini cylinders ship with position sensing ready to go; this one does. The MAC25X450SUH carries a magnet in the piston as standard, so CMSG, DMSG or EMSG switches clip straight onto the barrel for end-of-stroke or mid-stroke signalling over a 450 mm travel. Double acting with adjustable air cushioning at both ends, it runs 0.15-1.0 MPa (22-145 psi).
Force-wise, the 25 mm bore delivers 245.3 N forward at 0.5 MPa - theoretically 50 kgf at the full 1.0 MPa. Halve the 25 kg lift equivalent for a 2:1 margin and you can plan on lifting about 12 kg vertically per cylinder. The U flat-end back cover bolts flat to a fixture; add an FA flange or LB foot if the layout needs it.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X450SUH Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X450SUH |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 450 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 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 MAC25X450SUH
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×450 | 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 MAC25X450SUH Is Used
Indexing stop on a rotary transfer table
Extends 450 mm to block the fixture at the right station; CMSG switches confirm the stop is out before the cycle continues.
Deep tray ejection from storage racking
245.3 N forward at 0.5 MPa shoves totes off a 450 mm deep shelf; the 12 kg lift margin keeps sizing honest for loaded bins.
Level adjustment in a packaging frame
Extends or retracts 450 mm to set conveyor height legs; the flat-end U cover bolts straight to the frame bracket without adapters.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X450SUH the Right Cylinder?
Size against neighbours: bore 20 pushes 157.0 N at 0.5 MPa and bore 32 reaches 402.2 N, so pick the 25 mm class when your calculation lands between them. Over a 450 mm travel, keep the load on external guides - side load into the rod is the main killer of long-stroke minis. Loss of air pressure means the rod coasts freely, so fit a rod lock if the load must stay put. The magnet is standard, and FA flange, LB foot or SDB pivot mounts bolt on to suit your fixture.
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 MAC25X450SUH FAQ
Expect 245.3 N push and 206.1 N pull at 0.5 MPa, rising to 343.4 N push at 0.7 MPa, with a 50 kgf theoretical maximum at 1.0 MPa. Air ports are 1/8", the rod thread is M10x1.25, and it runs on 0.15-1.0 MPa (22-145 psi).
No. Every MAC piston carries a magnet as standard, so CMSG, DMSG or EMSG reed or solid-state switches clip onto the stainless barrel for end-of-stroke or mid-travel signalling straight out of the box.
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