Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X100-10S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X100-10S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø20mm bore and 100mm 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
- Stroke100 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 MACJ20X100-10S
A compact round-body actuator for lines where the final position has to be tuned on the machine: the MACJ20X100-10S is double-acting, air-driven in both directions, with a variable air cushion at each end and an external stop that trims the extend stroke anywhere within a 10 mm window. The 20 mm bore pushes with 157 N at 0.5 MPa and 219.8 N at 0.7 MPa, a light-duty class that suits gating, clamping and eject duties over 100 mm of travel.
Two details earn their keep in the field. The stainless barrel paired with a hard-chrome plated carbon-steel rod shrugs off washdown and damp plant air far better than painted minis, and the built-in magnet is standard, so CMSG, DMSG or EMSG switches drop on without a special piston. Plan real work at roughly 94 N of push at 0.5 MPa, and the rod will lift about 8 kg vertically with a 2:1 margin.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X100-10S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X100-10S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 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 MACJ20X100-10S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -10 | 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 MACJ20X100-10S Is Used
Bottling line reject gate
The 10 mm trim range lets technicians dial the exact stroke a pop-up reject gate needs to nudge off-spec bottles off a conveyor without re-plumbing the air.
Small assembly bench fixture
Light hold-down of brackets before a screw-driving step; 157 N at 0.5 MPa clamps thin sheet firmly without marking the surface.
Position verification on packaging machines
With the standard magnet, a DMSG switch confirms each trimmed extend position before the carton closer fires.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ20X100-10S the Right Cylinder?
Size against neighbours: the 16 mm bore gives 100.5 N push at 0.5 MPa and the 25 mm bore 245.3 N, so the 20 mm at 157 N sits in the middle for light gates and clamps. At 0.7 MPa it reaches 219.8 N push and 184.7 N pull, running 30-800 mm/s on 0.15-1.0 MPa (22-145 psi) air. Remember the adjuster is a mechanical end stop for the extend stroke only - it does not lock the piston mid-stroke, so the rod can still drift if air is lost. Over the full 100 mm travel, take side loads externally to protect the 8 mm rod. Mount with an FA flange or LB foot, add I or Y rod knuckles where the load pivots, and pick PT, G or NPT on the 1/8" port.
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 MACJ20X100-10S FAQ
Push is 157 N and pull 131.9 N at 0.5 MPa; at 0.7 MPa it reaches 219.8 N push and 184.7 N pull, with a theoretical peak of 32 kgf at 1.0 MPa. It is double-acting, extends at 30-800 mm/s on 0.15-1.0 MPa (22-145 psi) air, and the extend stroke is trimmable within a 10 mm window. Ports are 1/8".
It is purely a mechanical limit on the extend stroke. There is no mid-stroke lock, so on air loss the piston can still be moved by hand or load - use a separate locking valve where a held position really matters.
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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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