Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 500mm 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
- Stroke500 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 MAC20X500SCM
Half a metre of stroke from a 20 mm round body makes this MAC the long-reach member of the small-bore family: 157 N of push at 0.5 MPa, 131.9 N on the return pull, with air on both sides of the piston and a dial-in cushion at each end. Speed range runs 30-800 mm/s, and the cushion screws let you tune the last few millimetres at either end.
In practice, size the load to about 94 N of usable force at 0.5 MPa; the rest is margin. Lift-wise that is roughly 8 kg vertical with a 2:1 safety factor. Stainless tube plus a chrome-plated rod stands up to condensation and daily rinse-down, the CM round-end cover bolts to fixed brackets, and the standard magnet accepts CMSG or DMSG switches for stroke-end signals.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 500 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 MAC20X500SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×500 | 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 MAC20X500SCM Is Used
Sterilizer tray push
Feeds trays the full 500 mm into a tunnel pasteurizer; about 94 N of usable push at 0.5 MPa handles a loaded rack on low-friction rails.
Rewinder web tensioner
Keeps film tension steady on a converting line; the CM round-end cover takes a pivot mount and the air cushion smooths each direction change.
Lab test rig actuator
Drives a 500 mm platen in a benchtop endurance tester, cycling at 300 mm/s with cushioned ends so sensors read clean stop positions.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SCM the Right Cylinder?
Downsize to the 16 mm bore (100.5 N at 0.5 MPa) for light tray work or upsize to 25 mm (245.3 N) if the tunnel load grows; both share the same stainless round construction. With no air applied the piston simply floats - nothing locks it - so fit a pilot check valve when the tray must stay put mid-stroke. The CM round-end cover plus an LB foot or FA flange covers fixed mounting, and the built-in magnet feeds a CMSG or EMSG switch without ordering a special piston.
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 MAC20X500SCM FAQ
Expect 157 N extend and 131.9 N retract at 0.5 MPa, climbing to 219.8 N and 184.7 N at 0.7 MPa; the 1.0 MPa theoretical ceiling is roughly 32 kgf. Supply is through 1/8 inch ports, and the 8 mm rod carries an M8x1.25 thread.
Back both cushion needle screws fully out before the first run, then close them gradually until end-of-stroke thump disappears at your working speed, anywhere in the 30-800 mm/s band. Tuning this at full 500 mm extension protects the aluminium covers from hammer fatigue.
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 MAC20X500SCM
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.