Airtac MAC Stainless Steel Mini Air Cylinder MAC25X420SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X420SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 420mm 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
- Stroke420 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 MAC25X420SCA
Long reach in a compact body: the MAC25X420SCA gives 420 mm of travel from AirTAC's 25 mm stainless mini cylinder, double acting with a variable air cushion at both ends. Its 245.3 N push at 0.5 MPa comes from a riveted stainless barrel and hard-chrome plated rod, a combination that survives humid, washed-down or outdoor positions that defeat painted minis.
Position sensing needs no options - the magnet ships standard and CMSG, DMSG or EMSG switches mount directly on the tube. For sizing, treat 147 N as the practical push at 0.5 MPa once friction and pressure dips are allowed for; vertically that matches a part of about 12 kg lifted with a 2:1 safety margin.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X420SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X420SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 420 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 MAC25X420SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×420 | 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 MAC25X420SCA Is Used
Oven loader tray pusher
On a bakery oven loader the cylinder slides trays across a 420 mm gap; 245.3 N at 0.5 MPa overcomes hot, slightly sticky trays and the CA pivot cover takes up frame misalignment.
Grain hopper gate
The 420 mm stroke opens a slide gate across the base of a small grain hopper, and the variable cushion eases the gate home instead of slamming it shut.
Pallet stop on a line
Acting as a pallet stop before a wrap station, the cylinder presents and retracts over 420 mm; position feedback comes from a CMSG switch clipped to the standard magnet.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X420SCA the Right Cylinder?
The 20 mm bore pushes 157 N at 0.5 MPa and costs less; the 32 mm bore reaches 402.2 N when you want headroom. Do not expect this cylinder to hold a load on its own - once the valve centres and air bleeds away, the piston coasts wherever the load takes it, so add a rod lock or pilot check valve for a held position. A 420 mm stroke puts a long, slim 10 mm rod into service: use external guides or an I or Y rod knuckle to keep the load square, and bolt on FA flange, LB foot or SDB pivot brackets to suit the machine frame.
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 MAC25X420SCA FAQ
Expect 245.3 N push and 206.1 N pull at 0.5 MPa, or 343.4 N push and 288.5 N pull at 0.7 MPa; the ceiling is 50 kgf theoretical at 1.0 MPa. The bore is 25 mm, the port is 1/8", the rod is 10 mm with M10x1.25 thread, speed is 30-800 mm/s and supply runs 0.15-1.0 MPa (22-145 psi).
Nothing to add to the cylinder itself: every unit leaves the factory with a piston magnet already fitted. Snap a CMSG reed, DMSG or EMSG switch onto the stainless barrel, slide it to the switching point and wire it into your PLC - no special-order piston or sensor kit is required.
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