Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X200-20S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X200-20S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø20mm bore and 200mm 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
- Stroke200 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 MACJ20X200-20S
With a 20 mm trim window on the extend stroke, the MACJ20X200-20S lets machine builders dial in exact stop positions without reordering a fixed-stroke part. This double-acting AirTAC mini cylinder carries a variable cushion at each end and pushes 157 N (pull 131.9 N) at 0.5 MPa, climbing to 219.8 N (pull 184.7 N) at 0.7 MPa. The magnet comes fitted as standard for CMSG, DMSG and EMSG switches.
AirTAC rolls the aluminium covers and stainless block onto the barrel, giving a sealed round body that shrugs off condensation where painted housings blister. Size the duty around 94 N of genuine push at 0.5 MPa, or about 8 kg of vertical lift with a 2:1 margin; the theoretical peak is 32 kgf at 1.0 MPa. It runs 30-800 mm/s on 0.15-1.0 MPa (22-145 psi) filtered air.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X200-20S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X200-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 200 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 MACJ20X200-20S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×200 | Stroke length in mm. |
| -20 | 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 MACJ20X200-20S Is Used
Carton kicker arm
Diverts small parcels at a sorter junction; 157 N at 0.5 MPa handles light cartons, and the 20 mm trim aligns the kicker to the belt edge.
Bracket drill clamp
Clamps aluminium brackets ahead of a drilling head; the cushion absorbs the clamp snap and 131.9 N of pull opens the jaws reliably.
Label head advance
Advances a labeling head onto boxes; the built-in magnet feeds an EMSG switch so the PLC knows the head reached its set position.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X200-20S the Right Cylinder?
Compare before you buy: bore 16 delivers 100.5 N and bore 25 reaches 245.3 N at 0.5 MPa, so bore 20 with its 157 N covers mid-range pick-and-place jobs. The 200 mm rod travel is long for a mini - support any off-center load to protect the 8 mm rod. Choose FA flange or LB foot mounting, with I and Y knuckles for linkage work. Note the adjuster only sets the extend stop; it will not hold a load if the air supply drops.
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 MACJ20X200-20S FAQ
On this bore 20 cylinder: 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical ceiling of 32 kgf at 1.0 MPa. Operating band is 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
Every unit carries the piston magnet as standard, so AirTAC CMSG, DMSG and EMSG switches mount directly on the stainless barrel for end-of-stroke or mid-travel signaling. No piston swap or factory option is needed, and the 1/8 inch ports keep the air side simple to plumb.
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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