Airtac MAC Stainless Steel Mini Air Cylinder MAC20X330SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X330SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 330mm 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
- Stroke330 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 MAC20X330SU
Through dusty, humid plant air, the MAC20X330SU's stainless barrel and hard-chrome plated rod keep moving where painted mini cylinders rust and jam. This 330 mm double-acting bore carries variable air cushions at both ends, letting you back the needle screws off on first run and dial the stop shock in gradually.
At 0.5 MPa the 20 mm bore produces 157 N push and 131.9 N pull; at 0.7 MPa push reaches 219.8 N. In practice, budget about 94 N for the actual job to keep a margin. The U flat-end back cover presents a clean fixed face for plates and brackets, and the standard piston magnet pairs with CMSG, DMSG or EMSG switches for end-of-stroke feedback.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X330SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X330SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 330 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 MAC20X330SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×330 | 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 MAC20X330SU Is Used
Cart stop on a picking line
A stop pin rises into the path of picking carts under air pressure; 157 N at 0.5 MPa drives the pin while the cushion absorbs the contact.
Bin lower station
The 330 mm stroke lowers small parts bins from an upper rail, lifting about 8 kg vertically at a 2:1 safety margin.
Inspection probe extend
Flat-end mounting fixes the body to a gauge rig, extending a camera or probe 330 mm into a check fixture each cycle.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X330SU the Right Cylinder?
Step down to a 16 mm bore (100.5 N at 0.5 MPa) if this bore's 157 N is more than the task needs, or step up to 25 mm (245.3 N) when it falls short. The 330 mm stroke is within the 500 mm standard limit, but guide the load externally so side forces do not bend the 8 mm rod. Pressure runs 0.15-1.0 MPa (22-145 psi) and speed spans 30-800 mm/s. Fixed plates suit the flat-end U cover; FA flange or LB foot mounts bolt on when needed. If the load must not drop on air loss, add a rod lock or pilot check - the bare cylinder will coast.
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 MAC20X330SU FAQ
Push is 157 N and pull 131.9 N at 0.5 MPa; at 0.7 MPa push is 219.8 N and pull 184.7 N. Theoretical maximum is 32 kgf at 1.0 MPa, and operating pressure runs 0.15-1.0 MPa (22-145 psi).
The riveted stainless tube with a 20 um hard-chrome rod resists rust in damp or outdoor air and wipes clean for food-area washdown, with no barrel fasteners to work loose over the long 330 mm stroke.
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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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