Airtac MAC Stainless Steel Mini Air Cylinder MAC50X70SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC50X70SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø50mm bore and 70mm 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
- Stroke70 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 MAC50X70SU
Compact, bolt-on and short-stroked: this 50 mm bore MAC pairs a flat-end U back cover with 70 mm of travel and a variable air cushion at both ends. It is double acting - air pushes the rod out and pulls it back - delivering 981.3 N of extension and 880.8 N of retraction force at 0.5 MPa, up to 1373.8 N at 0.7 MPa with a 200.1 kgf theoretical peak.
The riveted stainless round barrel, 20 um hard-chrome plated rod and grease-retaining two-way piston seals survive damp, dusty plants better than painted minis ever do. For lifting sums, treat 100 kg as the theoretical vertical capacity and budget about 50 kg with a 2:1 margin. The standard built-in magnet carries CMSG, DMSG and EMSG switches straight away.
Airtac MAC Stainless Steel Mini Air Cylinder MAC50X70SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC50X70SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 70 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 MAC50X70SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 50 | 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 MAC50X70SU Is Used
Fixture clamp on a motorcycle frame welder
1373.8 N at 0.7 MPa clamps tube joints against weld distortion, all inside a tight 70 mm stroke envelope.
Crate nudge on a bottling transfer station
A short 70 mm push aligns crates at the lane change, running anywhere in the 30-800 mm/s band to match line tempo.
Parts lift on a small assembly elevator
The theoretical 100 kg vertical capacity halves to about 50 kg with a 2:1 margin - enough for tooling trays and sub-assemblies.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC50X70SU the Right Cylinder?
If the task needs less muscle, the 40 mm bore supplies 628.3 N at 0.5 MPa; if it needs more, the 63 mm bore supplies 1557.9 N. Keep in mind the rod will drift when the valve is centred or air is lost - a pilot check valve or rod lock holds the load instead. Mounting is direct through the flat-end U cover, with FA flange, LB foot or SDB pivot brackets when the frame needs them, plus I and Y rod knuckles on the tooling side. The 1/4 inch port and M14x1.5 rod thread simplify plumbing on compact machines.
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 MAC50X70SU FAQ
Extension: 981.3 N at 0.5 MPa and 1373.8 N at 0.7 MPa. Retraction: 880.8 N and 1233.1 N at those same pressures. Theoretical maximum force is 200.1 kgf at 1.0 MPa. Supply 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-800 mm/s.
A flat-end U cover bolts the cylinder straight to a machine face, keeping the footprint tight for compact fixtures. Add the washdown-friendly stainless barrel, a 70 mm stroke and the standard built-in magnet for CMSG, DMSG and EMSG switches, and it suits fixed-mount tooling neatly.
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