Airtac MAC Stainless Steel Mini Air Cylinder MAC20X120SCMLB
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X120SCMLB is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 120mm 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
- Stroke120 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 MAC20X120SCMLB
An LB foot under the barrel lets this 120 mm stroke cylinder sit flat on a machine plate, with the CM round-end cover closing the back. The 20 mm bore delivers 157.0 N of push at 0.5 MPa, double acting, and the variable air cushion at each end lets you run heavier loads or faster cycles without hammering the covers.
Stainless tube, rolled-packed covers and a hard-chrome plated rod hold up under rinse-down that rusts painted minis. Halving the theoretical 16 kg of vertical lift from the 157 N push leaves about 8 kg per lift as a comfortable working margin. Position sensing is built in - the standard magnet pairs with CMSG, DMSG and EMSG switches.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X120SCMLB Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X120SCMLB |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 120 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 MAC20X120SCMLB
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×120 | 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 MAC20X120SCMLB Is Used
Tote transfer in a sortation cell
The 120 mm stroke bridges the gap between two roller lanes while the LB foot keeps the cylinder flat on the frame plate.
Filling-nozzle changeover
Retracting the nozzle clear of a second lane on a small bottling rig uses 131.9 N of pull at 0.5 MPa with cushioned ends.
Bench-top probe lowerer
Lowering a test probe onto PCB pads in a functional tester: the cushion stops the tip bouncing at the bottom of travel.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X120SCMLB the Right Cylinder?
Cross-check force against 16 mm (100.5 N at 0.5 MPa) and 25 mm (245.3 N) before sizing up. The LB foot carries the barrel on a flat plate, but the 8 mm rod will bend under side load over 120 mm of stroke, so guide the load externally. With air removed the piston coasts - bolt on a rod lock or pilot check valve to hold position. SDB pivot brackets, FA flanges and I or Y rod knuckles are all available on the same body.
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 MAC20X120SCMLB FAQ
At 0.5 MPa: 157.0 N push and 131.9 N pull. At 0.7 MPa: 219.8 N push and 184.7 N pull. Theoretical maximum is 32.0 kgf at 1.0 MPa. Ports are 1/8" for this 20 mm bore, rod 8 mm with an M8x1.25 male thread, and the 120 mm stroke is a standard length here.
The foot bolts the barrel to flat plates and coexists on the same body with FA flanges, SDB pivot brackets and I or Y rod knuckles at the rod end. Back covers can be CA pivot, U flat-end or CM round-end, so the mount package can be mixed to suit the frame.
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Genuine AirTAC parts produced by AirTAC factory.
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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