Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X70-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X70-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø16mm bore and 70mm stroke, M5×0.8 air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ16 mm
- Stroke70 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- CushionFixed anti-impact bumper pads
- 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X70-20S
Need a stroke you can dial in after the machine is built? The MAJ16X70-20S ships double-acting with a 20 mm extend-trim window operated by an external stop screw. On 0.7 MPa supply the 16 mm bore reaches 140.7 N push; at 0.5 MPa it gives 100.5 N with 86.4 N on retract.
Round out the choice by comparing the family: plain MA is the fixed-stroke twin, MACJ adds an adjustable cushion, and MAD doubles the rod for anti-rotation work. Here, a sensible working budget is about 60 N at 0.5 MPa (0.6 of rated push), which covers spring-return guards and light clamps with margin. FA flange and LB foot bases plus I and Y knuckles bolt to most small fixtures, and the standard magnet keeps CMSG sensing available from day one.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X70-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X70-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 70 mm |
| Acting type | Double acting, adjustable stroke |
| 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 | Fixed anti-impact bumper pads |
| 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X70-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×70 | 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X70-20S Is Used
Bench guard interlock
About 60 N of working force at 0.5 MPa seats a light interlock gate; the 20 mm trim realigns the latch after fixture changes.
PCB probe positioning
Electronics test fixtures use the stop screw to set probe contact depth on the 70 mm approach without re-machining the mount.
Tote presence plunger
A CMSG switch on the standard magnet confirms the plunger has extended into a tote locater on a small storage carousel.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X70-20S the Right Cylinder?
Size up from this 70 mm model by bore, not stroke: bore 20 pushes 157.0 N at 0.5 MPa in the same riveted round body, while bore 16 (this model) is the light-duty entry. The trim screw is purely a mechanical end stop for the extend side - if air pressure drops the rod can still drift, so add an external clamp where position must be kept. Stainless barrel, M5x0.8 ports, 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
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 Bumper models: keep speed within the rated range.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X70-20S FAQ
0.5 MPa: 100.5 N push, 86.4 N pull. 0.7 MPa: 140.7 N push, 120.9 N pull. Theoretical ceiling 20.5 kgf at 1.0 MPa. Port M5x0.8; 6 mm rod with M6x1.0 male thread; standard strokes run up to 300 mm.
No. Every MA-series cylinder, this one included, ships with the piston magnet built in, so CMSG, DMSG or EMSG switches drop straight onto the barrel for position feedback - no special-order piston required.
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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