Airtac MAC Stainless Steel Mini Air Cylinder MAC50X250SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC50X250SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø50mm bore and 250mm stroke, 1/4" 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.
- BoreØ50 mm
- Stroke250 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC50X250SU
Choose the MAC50X250SU when a flat-ended back cover saves you a bracket on long-stroke pushers. The Dia 50 round barrel is stainless with a 20 um hard-chrome rod, a build that survives outdoor and washdown duties far better than painted-steel minis. Force at 0.5 MPa is 981.3 N push against 880.8 N pull, and the twin needle cushions let you tune end-of-stroke deceleration independently at each end.
It is double acting throughout the 250 mm stroke, speed 30-800 mm/s, pressure 0.15-1.0 MPa (22-145 psi). Derate to around 589 N for continuous work - that still lifts roughly 50 kg vertically with a 2:1 margin. Every unit carries its magnet from the factory, so CMSG / DMSG / EMSG switches drop on for end-of-stroke or mid-stroke signalling without a special piston order.
Airtac MAC Stainless Steel Mini Air Cylinder MAC50X250SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC50X250SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 250 mm |
| Acting type | Double acting + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 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 MAC50X250SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 50 | 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 MAC50X250SU Is Used
Test rig actuator
The flat-end U mounting bolts flush into a fatigue-test fixture applying 981.3 N push cycles, with cushion screws tuning the rebound at each end.
Pallet stopper
Brackets tote trains on a gravity roller line; with 589 N of practical force at 0.5 MPa it holds back loads equivalent to 50 kg.
Outdoor gate operator
Drives a sliding site gate through a pivot linkage; the stainless barrel shrugs off rain and dust where painted cylinders would corrode within a season.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC50X250SU the Right Cylinder?
Compare forces before committing: 628.3 N push at 0.5 MPa from the 40 mm bore, 981.3 N from this 50 mm bore, 1557.9 N from the 63 mm bore. The U flat-end back cover gives a clean fixed face for direct bolting to machine plates or an SDB pivot bracket. Because neither chamber is spring-loaded, a vented unit offers no position hold - fit a pilot-operated check valve if the rod must stay put on air loss. At 250 mm stroke, align the load carefully; lateral force on the Dia 16 rod is the main failure mode.
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 MAC50X250SU FAQ
Expect 981.3 N push and 880.8 N pull at 0.5 MPa, 1373.8 N push at 0.7 MPa, and up to 200.1 kgf theoretically at 1.0 MPa. A sensible continuous-work target is about 60 percent of the push figure, roughly 589 N.
The round body tube is stainless steel and the Dia 16 rod is carbon steel hard-chrome plated to about 20 um; aluminium-alloy covers and a stainless block are rolled onto the tube. That riveted, sealed build is what gives it an edge over painted minis in washdown and outdoor air.
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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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