Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X30-20S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X30-20S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø16mm bore and 30mm stroke, M5×0.8 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.
- BoreØ16 mm
- Stroke30 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM6×1.0
- 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 MACJ16X30-20S
Built around a 16 mm stainless round barrel with rolled aluminium covers, this double-acting mini cylinder combines an adjustable extend stroke with a variable air cushion at each end. The -20 code gives a 20 mm trim window: set the stop screw once and the rod lands exactly where the fixture wants it, with the cushion soaking up the shock. Push force is 100.5 N and pull 86.4 N at 0.5 MPa; at 0.7 MPa push climbs to 140.7 N, against a theoretical peak of 20.5 kgf at 1.0 MPa.
Vertically it can lift roughly 10 kg on paper, so match part weights against about 5 kg to keep a 2:1 margin in hand. The 20 um hard-chrome plated 6 mm rod and stainless tube handle splash and humidity far better than painted minis, and the standard-fit magnet means CMSG / DMSG / EMSG switches drop on without a special order. Operating window: 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X30-20S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X30-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 30 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 86 N |
| 0.7 MPa | 141 N | 121 N |
| Max (@1.0 MPa) | 21 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 MACJ16X30-20S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 16 | Bore size in mm. |
| ×30 | 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 MACJ16X30-20S Is Used
Vial lane gate on a filling line
Opens and closes a vial stop gate over 30 mm of travel; the stainless barrel tolerates the damp, frequently wiped environment around wash stations.
Lid press-fit on cosmetic jars
Snaps snap-on lids home using about 60 N of working force at 0.5 MPa; the 20 mm adjust window sets press depth without shimming the fixture.
Positive stop on a pneumatic slide
Acts as the adjustable hard stop on a small linear slide; remember the screw only sets the endpoint and will not hold the slide against a push.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ16X30-20S the Right Cylinder?
Compare both directions before you buy: the same frame at bore 20 pushes 157.0 N at 0.5 MPa if 100.5 N is marginal, while nothing smaller than 16 mm exists in this series. The stop screw defines where extension ends; it will not lock the rod, and a de-pressurised cylinder can creep under an overhanging load, so clamp independently where that risk exists. FA flange and LB foot mounts cover fixed bases, and I or Y knuckles suit swinging links. With just 30 mm of stroke on a 6 mm rod, side-load and rod-bending worries stay off the checklist.
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 MACJ16X30-20S FAQ
The barrel is stainless steel and the 6 mm rod carries a 20 um hard-chrome plating, so condensation, splash and mild washdown cause far less trouble than on painted or plain aluminium mini cylinders. The aluminium-alloy covers are riveted onto the tube, giving a sealed round body with no fasteners to work loose.
Push 100.5 N and pull 86.4 N at 0.5 MPa; push 140.7 N and pull 120.9 N at 0.7 MPa; 20.5 kgf theoretical maximum at 1.0 MPa. The air port is M5x0.8, the rod thread is M6x1.0, and the working pressure range is 0.15-1.0 MPa (22-145 psi).
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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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