
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X130SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 130mm 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.
At 20 mm bore and 130 mm of stroke, this flat-end U version of the MAC pushes 157 N and retracts with 131.9 N at 0.5 MPa; step the supply to 0.7 MPa and the numbers become 219.8 N and 184.7 N, with 32 kgf as the theoretical maximum. Work the cylinder at around 94 N - six tenths of the push rating - and seal life stays healthy. It is fully double acting on 0.15-1.0 MPa (22-145 psi) of 40 um filtered air.
Inside sits a high-precision stainless barrel carrying a hard-chrome plated carbon-steel rod, with aluminium covers rolled on for a riveted, sealed round body - no tie-rod sets to check. Needle-screw cushions at both stroke ends let you start loose and tighten gradually, so faster cycling toward 800 mm/s does not hammer the covers, and the standard built-in magnet accepts CMSG, DMSG and EMSG switches from day one.
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X130SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 130 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.
| 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.
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×130 | 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.
Feeds a bracket onto locating pins in a spot-welding fixture, the U cover bolted flat against the jig plate with the 130 mm stroke covering the insert travel.
Opens and closes the slide gate under a small granulate hopper, metering doses with a cushioned stop at each end of the gate travel.
Raises a vision camera between inspection heights on a packaging line gantry, lifting about 8 kg of camera hardware with a 2:1 force margin.
Step down to the 16 mm bore (100.5 N push at 0.5 MPa) or up to the 25 mm bore (245.3 N) depending on the load; this 157 N size handles the range between. Remember it holds nothing once air drops - the piston coasts with the valve centred, so a rod lock or pilot check valve is the answer for held loads. The U flat-end back cover takes fixed bolting as it stands, or spec FA flange, LB foot and SDB pivot codes to suit the frame. A 130 mm stroke tolerates modest side load only, so guide the work or decouple it through an I or Y rod knuckle.
Quick checklist
At 0.5 MPa: 157 N extend, 131.9 N retract. At 0.7 MPa: 219.8 N extend, 184.7 N retract. Theoretical maximum is 32 kgf at 1.0 MPa. It connects via a 1/8" port (bore 20), the 8 mm rod is threaded M8x1.25, and the 130 mm stroke is standard for this bore.
The U flat-end cover lets you bolt the cylinder straight to a machine plate. If the frame needs something else, add FA (flange), LB (foot) or SDB (pivot bracket) to the order code, or choose a CA pivot or CM round-end cover instead - all without external adaptor plates.
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