Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40S is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 200mm nominal stroke and a rear adjustable-stroke stopper — trim up to 40mm for a usable window of 160–200mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke200 mm
- Adjustable160–200 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable 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 MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40S
The AirTAC MBLCJ20X200-40S is a compact double-acting aluminum mini cylinder featuring a single Ø8 mm carbon-steel rod with 20 μm hard-chrome plating. It combines a rear travel stopper with a tunable air cushion at both ends, delivering 157 N of push force at 0.5 MPa. The integrated magnet (-S) enables position detection using CMSG reed or DMSG/EMSG electronic sensors.
This specific SKU trims up to 40 mm at the rear, creating a usable stroke window of 160 to 200 mm. Unlike the standard MBLJ which relies on a fixed rubber bumper, the screw-tunable air cushion here decelerates heavier or faster moves to protect the end covers. The riveted rolling-packed barrel and heterogeneous two-way grease-retaining piston seal ensure stable friction in tight spaces.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 200 mm |
| Adjustable window | 160–200 mm (trim 40 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 300 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×200 | Nominal stroke length in mm. |
| -40 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40S Is Used
PCB Depaneling Saw
Provides 157 N of push force to advance a depaneling blade carriage through a 160-200 mm travel window, with the air cushion absorbing the rapid deceleration at the stroke end to prevent frame shock.
Textile Tension Gate
Uses the 40 mm rear stroke adjustment to dial in precise yarn tension limits on a weaving loom, while the DMSG electronic sensor confirms the gate position for the control system.
Small Parts Ejector
Pushes molded plastic parts out of a tight injection mold cavity, relying on the tunable cushion to soften the 132 N retract impact and protect the delicate ejector plate assembly.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40S the Right Cylinder?
If you need less force, stepping down to the Ø16 bore yields 124 N push at 0.5 MPa, while stepping up to the Ø25 bore provides 245 N push for heavier payloads. Choose this MBLCJ over the MBLJ when your cycle speed requires tunable end-of-stroke deceleration rather than a fixed bumper, or over the MBLC when you need a rear travel stopper to fine-tune the end position. Remember that the rear adjuster is a travel stop, not a lock; it will not hold a load if air pressure drops. Mounting is limited to Basic, FA, or LB styles (no SDB or back-cover options). For a direct replacement, match the 20 mm bore, 200 mm stroke, 40 mm adjust code, G1/8 port, PT thread, and the -S magnet. At 200 mm stroke, the small 8 mm rod is susceptible to bending under lateral stress, so use an external guide to prevent side-load damage.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-40S FAQ
At 0.5 MPa, this 20 mm bore cylinder provides 157 N of push force and 132 N of pull force. At 0.7 MPa, the push force increases to 220 N, and it reaches a maximum theoretical output of 32 kgf at 1.0 MPa.
The adjustable stroke uses a rear stopper to mechanically trim the travel window down to 160 mm from the 200 mm nominal stroke. The adjustable air cushion is a separate screw-tunable valve that controls exhaust flow to decelerate the piston near the end covers. Neither mechanism is a lock; the cylinder cannot hold a load without live air pressure.
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.
Related AirTAC Adjustable-Stroke Cylinders
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