Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X100-20S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X100-20S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø63mm bore and 100mm stroke, 1/4" 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.
- BoreØ63 mm
- Stroke100 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM14×1.5
- 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 MACJ63X100-20S
Twenty millimetres of on-site adjustment rides on the strongest bore of the MA line: the MACJ63X100-20S moves 100 mm of stroke with 1558 N of push and 1457 N of pull at 0.5 MPa, rising to 2181 N and 2040 N at 0.7 MPa. The extend stop screw lets you shave up to 20 mm off the forward stroke after installation, and dual variable cushions keep the 317.7 kgf-class piston from slamming either cover.
In practice, budget about 935 N of usable push at 0.5 MPa and you can lift roughly 79 kg vertically with a 2:1 margin - or about 159 kg at the raw rating. The stainless round barrel and 20 um hard-chrome rod hold up against coolant mist and washdown far better than painted minis, a real advantage in food and packaging cells where condensation is constant.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X100-20S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X100-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 100 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | 2041 N |
| Max (@1.0 MPa) | 318 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 MACJ63X100-20S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×100 | 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 MACJ63X100-20S Is Used
Case eject on a sealer
Ejecting sealed cartons from a case sealer - 100 mm clears the chute and the 20 mm trim absorbs later changes of carton size.
Pallet stop blade lift
Raising a stop blade in a warehouse transfer station, where about 79 kg of vertical capacity with a 2:1 margin covers the blade and bracket weight.
Crimping press pre-load
Pre-loading connectors under a small arbor press so the operator's manual stroke only finishes the crimp, cutting cycle effort.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X100-20S the Right Cylinder?
Where the load calls for more than the 981 N a 50 mm bore delivers at 0.5 MPa, this 63 mm model is the end of the MA line - no larger standard bore exists in the series. The 20 mm window is enough to compensate for tooling wear or compressible seals without reordering. Long 100 mm strokes pushing off-axis should be externally guided or fitted with an I or Y rod knuckle to keep rod bending in check, and the stop screw remains a stroke limit, never a load lock. FA flange and LB foot brackets cover mounting, while CMSG, DMSG or EMSG switches drop onto the barrel thanks to the standard piston magnet.
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 MACJ63X100-20S FAQ
Double-acting with adjustable stroke and variable air cushion; 100 mm stroke, extend trimmable up to 20 mm; 0.15-1.0 MPa (22-145 psi) supply with 1.5 MPa (215 psi) proof pressure; forces of 1558 N push and 1457 N pull at 0.5 MPa, 2181 N and 2040 N at 0.7 MPa, 317.7 kgf theoretical maximum; 1/4 in ports; 30-800 mm/s speed.
FA flange and LB foot brackets are the standard mountings, with I and Y rod knuckles available for linkage work (the adjustable version carries no SDB option). Piston speed runs anywhere from 30 to 800 mm/s, and the variable cushions at both ends let you soften the last few millimetres of travel at whatever speed you choose.
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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