Airtac MAC Stainless Steel Mini Air Cylinder MAC25X70SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X70SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 70mm 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
- Stroke70 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 MAC25X70SU
At 70 mm of stroke, the MAC25X70SU gives you a 25 mm double acting piston that pushes 245.3 N and pulls 206.1 N at 0.5 MPa, climbing to 343.4 N on 0.7 MPa supply. The round stainless barrel is rolled onto aluminium covers, and the hard-chrome 10 mm rod resists the scuffing that kills coated mini cylinders in wet shops. Adjustable air cushions at both ends let you dial in soft landings for parts that dislike slam stops.
The U flat-end back cover presents a plain flat face for direct bolting to a machine plate, with no pivot to align. The magnet is built in as standard equipment, so DMSG or EMSG reed switches snap onto the barrel for stroke signalling. Halve the 25 kgf raw lift figure from the 0.5 MPa push and you still raise about 12 kg vertically with a 2:1 margin.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X70SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X70SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 70 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 MAC25X70SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×70 | 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 MAC25X70SU Is Used
Sample tray pusher
Advances sample trays into a laboratory analyser; the stainless barrel tolerates daily wipe-downs with mild solvents where painted housings would flake.
Tray eject at checkweigher
Knocks rejected trays sideways off a checkweigher belt; 245 N at 0.5 MPa clears the tray in one hit, with cushions softening both ends of the 70 mm throw.
PCB solder pallet lift
Raises a wave-solder pallet 70 mm on an electronics line; the U flat-end bolts straight to the lift plate and the magnet signals top-of-stroke.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X70SU the Right Cylinder?
Step down to a 16 mm bore (about 100 N push at 0.5 MPa) for light part ejection, or step up to the 40 mm (628 N) when clamps get hungry; the 25 mm here balances 245.3 N extend against 206.1 N retract at 0.5 MPa. The cylinder cannot park a load: once supply drops the rod moves, so spec a rod lock for holding positions. Bolt through the U flat-end face or add FA flange and LB foot options, with 1/8 ports ordered in PT, G or NPT. Beyond the 500 mm standard stroke limit, strokes become made-to-order and rod bending under side load deserves a check.
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 MAC25X70SU FAQ
Push is 245.3 N and pull 206.1 N at 0.5 MPa; on 0.7 MPa it reaches 343.4 N push and 288.5 N pull; the theoretical ceiling is 50 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) with 30-800 mm/s speed and a variable cushion both ends.
Every MAC25X70SU ships with a piston magnet as standard, so CMSG, DMSG or EMSG switches clamp onto the stainless barrel for end-of-stroke or mid-stroke signalling without any special piston 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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