Airtac MAC Stainless Steel Mini Air Cylinder MAC20X50SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X50SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 50mm 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.
- BoreØ20 mm
- Stroke50 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X50SU
With a U flat-end back cover, the MAC20X50SU bolts flush against a plate or bracket - no standoffs needed - while the 20 mm bore pushes 157 N and pulls 131.9 N at 0.5 MPa over a 50 mm stroke. It is double acting with a variable air cushion at each end, so end-of-stroke shock is tunable rather than fixed.
Build quality is the selling point: a stainless round barrel riveted to aluminium covers, plus a hard-chrome plated carbon-steel rod, tolerates splash and humidity that rust painted minis. The magnet comes built in, so CMSG / DMSG / EMSG switches order as simple add-ons, not special pistons. Halving its 16 kgf lift capacity gives about 8 kg of vertical load at a 2:1 margin - check that figure against the part you are moving.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X50SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X50SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 50 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MAC20X50SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×50 | 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 MAC20X50SU Is Used
Bench press assist
A light hand-assembly press that seats bearings into housings: 219.8 N of push at 0.7 MPa handles small ball bearings, with cushions damping the return stroke.
Pallet presence flag
Raising a flag to signal a loaded pallet position: the standard magnet trips a DMSG switch mid-stroke, so the PLC knows a pallet sits at the stop.
Small parts ejector
Ejecting finished bushings from a lathe fixture: the 50 mm stroke clears the pocket, and the flat-end mount ties the cylinder right to the fixture plate.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X50SU the Right Cylinder?
If 157 N at 0.5 MPa overshoots your job, the 16 mm bore delivers 100.5 N; if it falls short, the 25 mm bore offers 245.3 N at the same pressure. The flat-end U cover is for fixed, plate-mounted duties - choose the CM round end or CA pivot when the rod linkage must swing. And since the piston floats when air is removed, never treat the cushion as a brake; a pilot check valve or rod lock holds the load instead.
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 MAC20X50SU FAQ
Push at 0.5 MPa is 157 N, pull 131.9 N; at 0.7 MPa push is 219.8 N and pull 184.7 N, with a theoretical maximum of 32 kgf at 1.0 MPa. The rod is 8 mm with an M8x1.25 male thread and 1/8 inch ports.
No - every MAC cylinder carries a built-in magnet as standard, so CMSG, DMSG and EMSG switches snap onto the stainless barrel anywhere along the 50 mm stroke. Position them for extend, retract or mid-stroke detection without modifying the piston.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MAC Stainless Steel Mini Air Cylinder MAC20X50SU
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.