Airtac MAC Stainless Steel Mini Air Cylinder MAC25X450SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X450SU 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 MAC25X450SU
At 450 mm of stroke, this MAC25X450SU gives a 25 mm bore rod enough reach for gates, lifters and slide mechanisms that travel well past compact-cylinder limits. It is double acting - air drives the rod both out and back - with a variable air cushion at each end you tune with the needle screws. Running pressure spans 0.15-1.0 MPa (22-145 psi) and stroke speed 30-800 mm/s.
The stainless round barrel and hard-chromed 10 mm rod tolerate washdown and damp plant air far better than painted minis, and the riveted aluminium covers keep the pack sealed. At 0.5 MPa the bore pushes 245.3 N, so sizing at roughly 60% gives you about 147 N of dependable working force - enough to shift a 15 kg drawer or tray on low-friction guides.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X450SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X450SU |
|---|---|
| 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 MAC25X450SU
| 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 MAC25X450SU Is Used
Slide-door actuator on assembly cells
Pushes light aluminium slide guards across a 450 mm opening; the air cushion lets the door stop soft at speed instead of banging the frame.
Small parts lift in a hopper column
Raises about 12 kg of sorted components vertically per cylinder within a 2:1 margin - pair two bores for heavier trays.
Pusher on a wide conveyor lane
Kicks cartons sideways across a 450 mm lane; the stainless barrel and chromed rod cope with dust and washdown on food-grade lines.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X450SU the Right Cylinder?
Compare both directions before you commit: a 20 mm bore MAC gives 157.0 N push at 0.5 MPa, while stepping up to 32 mm raises that to 402.2 N. A 450 mm stroke is long for a mini - guide the load externally and keep side load off the 10 mm rod, or rod bending and seal wear will shorten life. Note the cylinder does not hold position when air drops; a pilot check valve or rod lock handles clamped loads. The U flat-end back cover mounts flat, with FA flange, LB foot and SDB pivot brackets available.
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 MAC25X450SU FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa push rises to 343.4 N. The theoretical maximum is 50 kgf at 1.0 MPa. Working pressure spans 0.15-1.0 MPa (22-145 psi) and stroke speed 30-800 mm/s.
Yes - both ends carry a variable air cushion. Back the needle screws fully off at commissioning, then close them gradually until end-of-stroke knock disappears. That lets the 450 mm stroke run faster or carry more without hammering the covers.
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1-Year Warranty
Covers non-human-caused product damage.
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