Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X175-50S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X175-50S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø20mm bore and 175mm 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
- Stroke175 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X175-50S
Need a stroke you can fine-tune on the machine? This 20 mm bore MACJ accepts a 50 mm trim on its 175 mm extend stroke via the end-stop screw, with a variable air cushion on both ends to tame impact. Expect 157 N forward and 131.9 N back at 0.5 MPa, within a 0.15-1.0 MPa (22-145 psi) supply, peaking at 32 kgf theoretical.
Round stainless tubing, a 20 um hard-chrome plated carbon-steel rod and riveted aluminium covers give it real corrosion resistance in damp or lightly washed-down cells. The magnet comes built in for CMSG / DMSG / EMSG switches. Treat roughly 94 N - six-tenths of the 0.5 MPa rating - as your practical working force, which equals about 8 kg lifted vertically with a 2:1 margin.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X175-50S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X175-50S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke + 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 300 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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X175-50S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -50 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X175-50S Is Used
Food-line diverting
Pushes small totes off a washdown conveyor; the stainless round body copes with daily hose-down better than painted minis.
Sizing station stop
Sets the final part position on a sizing fixture with the 50 mm adjuster instead of cutting new mechanical stops.
Skid valve actuation
Actuates a small ball valve on a water-treatment skid, with the variable cushions easing seat contact each cycle.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X175-50S the Right Cylinder?
Compare before you buy: bore 16 gives 100.5 N and bore 25 gives 245.3 N at 0.5 MPa, so this 157 N class sits squarely in light clamping and ejecting work. FA and LB mountings, plus I / Y rod knuckles, suit jigs and small fixtures. With 175 mm of travel on an 8 mm rod, watch bending from side loads - guide the tooling externally where it overhangs. The adjustable stop shortens the extend stroke only; unpowered, the piston still moves freely.
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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X175-50S FAQ
0.5 MPa gives 157 N extend / 131.9 N retract; 0.7 MPa gives 219.8 N / 184.7 N; the ceiling is 32 kgf theoretical at 1.0 MPa. Pressure range 0.15-1.0 MPa (22-145 psi); cycle speed 30-800 mm/s.
A high-precision stainless-steel barrel pairs with a carbon-steel rod plated in 20 um of hard chrome, and the aluminium covers are riveted onto the tube, so there are no painted surfaces to flake in washdown or humid air. Ports are 1/8" and the 8 mm male rod thread is M8x1.25.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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