Airtac MAC Stainless Steel Mini Air Cylinder MAC20X150SCMLB
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X150SCMLB is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 150mm 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
- Stroke150 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 MAC20X150SCMLB
With an LB foot bolted under a CM round-end cover, the MAC20X150SCMLB sits flush on a machine plate - no brackets to fabricate. Air at 0.15-1.0 MPa (22-145 psi) through 1/8" ports makes it double acting with a variable cushion at both ends, pushing 157 N and pulling 131.9 N at 0.5 MPa and 219.8 N at 0.7 MPa over the 150 mm stroke.
Foot mounting suits long centre-line strokes like this one: the feet carry the bending moment a 150 mm extension generates. The stainless barrel and hard-chrome 8 mm rod cope with flour dust, washdown and yard air alike. Plan on roughly 94 N of usable push at 0.5 MPa - about 8 kg lifted vertically with a 2:1 margin - and drop a CMSG, DMSG or EMSG switch onto the barrel for end-of-stroke signals; the magnet is already in the piston.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X150SCMLB Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X150SCMLB |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 150 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 MAC20X150SCMLB
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×150 | 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 MAC20X150SCMLB Is Used
Tray pusher
Slides bread trays onto a bakery depalletiser conveyor; the foot mounting bolts the cylinder down and the cushion stops the tray banging into the stop.
Case indexer
Advances cases one lane at a time on a beverage-line merge, with a DMSG switch on the barrel confirming each 150 mm index for the line controller.
Battery latch
Locks the battery retainer on a compact electric tow tractor - about 94 N of working force holds the latching cam firmly closed over bumps.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X150SCMLB the Right Cylinder?
This is the bolt-down pick in the 20 mm MAC range: the same 157 N push at 0.5 MPa as the pivot-cover versions, but the feet take the reaction force straight into the baseplate. Drop to the 16 mm bore (100.5 N) for lighter duties or to the 25 mm bore (245.3 N) when loads climb. Air off or valve centred means the rod drifts under load - a plain MAC holds nothing - so specify a rod lock or pilot check valve wherever the 150 mm position matters. Keep thrust in line with the rod axis; side load across 150 mm of stroke will bow the 8 mm rod, so guide the workpiece 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 MAC20X150SCMLB FAQ
Push 157 N and pull 131.9 N at 0.5 MPa; push 219.8 N and pull 184.7 N at 0.7 MPa; theoretical maximum 32.0 kgf at 1.0 MPa on the 20 mm bore. The cylinder runs on 0.15-1.0 MPa (22-145 psi) air filtered to 40 um.
Back both needle screws fully off, run the rod at low speed, then close each screw gradually until the end-of-stroke knock disappears. The variable cushion works at both ends and lets you keep speeds up to 800 mm/s without shock loads on the CM cover or the LB feet.
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