Specifications: TTQ50X30K is a 50 mm bore, 30 mm stroke conveyor stopper cylinder with a lever roller with adjustable hydraulic shock absorber. Single acting, air retracts the rod and the rear spring extends it when air is removed.
Product Catalog
Download Airtac Product Catalog (PDF)
Download 2022 slide, clamp and stopper accessories (PDF)
Download 2022 cylinder installation and weight tables (PDF)
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
Model code
| Code |
Meaning |
| TTQ |
Single acting, air retracts the rod and the rear spring extends it when air is removed; fixed-height body with through holes and internal threads at both ends |
| 50 |
50 mm bore |
| X30 |
30 mm stroke |
| (blank magnet) |
No position-sensing magnet |
| K |
lever roller with adjustable hydraulic shock absorber |
| (blank self-lock) |
Without self-lock |
| (blank thread) |
Metric port at the explicitly listed M5 sizes; otherwise PT |
Technical specifications
| Parameter |
Details |
| Bore / stroke |
50 / 30 mm |
| Acting type |
Single acting, air retracts the rod and the rear spring extends it when air is removed |
| Fluid |
Air filtered through a 40 μm element |
| Operating pressure |
0.2–1.0 MPa |
| Proof pressure |
1.5 MPa |
| Temperature |
−20 to +70 °C |
| Stroke tolerance |
0 / +1.0 mm |
| Basic cushioning |
Bumper cushion |
| Additional lubrication |
Not required |
| Air port printed in this edition |
PT1/8 |
| Mounting |
Through holes and internal threads at both ends; fixed installation height |
| Stopping head |
lever roller with adjustable hydraulic shock absorber |
Current configuration dimensions
Dimensions are millimeters unless a thread is shown. Drawing letters retain their source meaning; use the matching rod-end drawing for diameters, mounting faces and hole positions. The + stroke and + 2 × stroke formulas have been evaluated for this product.
| Parameter |
Details |
| A + 2 × stroke |
214 mm (154 + 60) |
| AB + stroke |
130 mm (100 + 30) |
| AC + stroke |
84 mm (54 + 30) |
| AE |
1.5 |
| B |
64 |
| C |
71 |
| D |
25 |
| J |
11 |
| JA |
8 |
| K |
M8×1.25 |
| KA |
14 |
| KB |
50 |
| M |
56 |
| MA |
28 |
| P |
PT1/8 |
| PA |
22 |
| PB |
12 |
| R |
20 |
| S |
14 |
| T |
24 |
| U |
38 |
| V |
14 |
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
Conveyor selection and loading
Select against the actual moving mass, impact speed, friction and lateral load. The impact-load graphs use conveyor speed in meters per minute; they are not cylinder-travel speed limits. The lateral-load graphs relate transverse load in newtons to operating air pressure. A curve that extends beyond a product’s operating range does not raise its permitted pressure.
The TWQ selection page has separate impact-load curves for the round / flat / roller heads and for the K lever-roller head. A K-head curve must not be used to rate a C, B or R head. The 20 and 25 mm TWQ sizes do not list a K-head configuration.
Lever-roller setup and service
| Parameter |
Details |
| Dedicated hydraulic shock-absorber replacement |
ASJ1408 |
| Adjustment |
Adjustable; set to the actual load |
- Prevent a second load from striking while the shock absorber is fully compressed. Repeated impact without recovery can cause mechanical failure.
- The absorber supplied for this stopper operates in a pressurized arrangement and differs from a general-purpose absorber. Replace it with the dedicated type when cushioning performance deteriorates.
- For an adjustable absorber, loosen its retaining screw, adjust the cushioning setting, then tighten and restore any removed stop block. Do not use the fasteners as a way to increase the cylinder pressure rating.
- The cancellation pin can hold the rocker arm down when the stopping function is not required. Follow the illustrated procedure and isolate unintended machine movement.
For the illustrated adjustable K-head absorber, the source limits adjustment rotation to 240°. The locking / anti-rotation arrangement permits direction adjustment after its fastener is loosened. The G flange can also be moved to change installation height; this height adjustment does not apply to the fixed-height Q body.
Series construction and materials
The source exploded view is a representative single-acting TTQ-K at bores 32–50 configuration. Spring, magnet, locking and hydraulic components apply only to the corresponding configuration; the entire parts list is not a statement that every option is supplied with this product.
Internal structure and materials
- 1. Body: Aluminum alloy.
- 2. Silencer: Sintered bronze particles.
- 3. Piston: Aluminum alloy.
- 4. Piston seal: NBR.
- 5. Magnet: Plastic-bonded magnetic material.
- 6. Bumper: TPU.
- 7. Set screw: Medium-carbon steel.
- 8. Front cover: Aluminum alloy.
- 9. Absorber adjustment seat: POM.
- 10. Set screw: Medium-carbon steel.
- 11. Piston rod: S45C hardened and ground.
- 12. Fixed seat: Ductile cast iron.
- 13. Locating pin: Cast steel.
- 14. Torsion spring: Spring steel.
- 15. Rocker arm: Cast steel or ductile cast iron.
- 16. Roller: Low-carbon steel.
- 17. Steel ball: Stainless steel.
- 18. Stop block: Powder-metallurgy alloy.
- 19. Cancellation pin: Aluminum alloy.
- 20. Anti-rotation washer: Powder-metallurgy alloy.
- 21. Hydraulic shock absorber: Assembly.
- 22. Sliding sleeve: Sintered bronze alloy.
- 23. Special-shaped seal: NBR.
- 24. O-ring: NBR.
- 25. Magnet retaining ring: Aluminum alloy.
- 26. Wear ring: Wear-resistant material.
- 27. Spring: Spring steel.
- 28. Bumper ring: POM.
- 29. Rear cover: Aluminum alloy.
Position sensing
This configuration is supplied without a magnet. Do not assume a magnetic sensor can detect the piston without the corresponding magnetic conversion parts.
Pneumatic circuit selection reference
The 2022 selection example for a 50 mm cylinder bore uses a theoretical speed of 500 mm/s and an effective flow area of 5.1 mm². It is a circuit-sizing example, not a guaranteed installed speed or a supplied package. Match the actual cylinder port, valve capacity and tubing. This product uses PT1/8; a reference accessory with a different thread is not a direct screw-in connection.
| Parameter |
Details |
| Single / double solenoid valve example |
5V21008 / 5V22008 |
| Single / double air-pilot valve example |
4A21008 / 4A22008 |
| Flow control / silencer example |
PTL02 / BSL02 |
| Tube outside / inside diameter |
10 / 6.5 mm |
Installation and operating conditions
- Flush the piping before connection and use clean, conditioned compressed air with the filtration specified for this cylinder. Keep sealant clear of the first 1–2 thread turns.
- Align the actuator and load; provide protection from moving parts and unexpected motion after a loss or restoration of air or electrical power. Exhaust residual pressure before maintenance or removal.
- Start with the flow-control valve closed and open gradually to the required speed. Check cushioning against the actual speed, load and stopping energy; a closed-center valve does not guarantee prolonged load holding or precise intermediate stopping.
- Protect the sliding surfaces, prevent moisture from freezing and keep contaminants out of the ports. Protect stored equipment from corrosion. Follow the dedicated lubrication instructions; where continued lubrication is selected, the general catalog specifies additive-free ISO VG32 turbine oil.
Optional complete connection and control order codes
These separately ordered options supplement the retained circuit reference; they are not supplied as a complete connection kit. Confirm actual flow and stopping response before selection.
-
PC1001: PT1/8 male × 10 mm tube OD
Straight connection at the single powered cylinder port
-
PSA10: Two 10 mm tube ends; no pipe thread
Inline meter-in for air retraction, with free exhaust for spring extension
-
US98A100065100MBU: polyester polyurethane; 10 mm OD × 6.5 mm ID; blue, 100 m roll
Optional packaging example; cut to the installed length
-
UE95A100065100MBU: polyether polyurethane; 10 mm OD × 6.5 mm ID; blue, 100 m roll
Optional packaging example; cut to the installed length
-
BSL01: PT1/8 male; 0–1 MPa, −20 to +70°C
Silencer at selected valve R only
-
3V106A, 3V106AI: PT1/8 female P/A/R; DIN or 0.5 m flying leads
220 V AC normally closed 3/2 control for air retraction and spring extension
-
3V106B, 3V106BI: PT1/8 female P/A/R; DIN or 0.5 m flying leads
24 V DC normally closed 3/2 control for air retraction and spring extension
-
3V106C, 3V106CI: PT1/8 female P/A/R; DIN or 0.5 m flying leads
110 V AC normally closed 3/2 control for air retraction and spring extension
-
3V106E, 3V106EI: PT1/8 female P/A/R; DIN or 0.5 m flying leads
24 V AC normally closed 3/2 control for air retraction and spring extension
-
3V106F, 3V106FI: PT1/8 female P/A/R; DIN or 0.5 m flying leads
12 V DC normally closed 3/2 control for air retraction and spring extension
Cylinder connections use PC1001 at PT1/8; Install PSA10 inline. Select restricted valve-to-cylinder charging and free cylinder-to-valve exhaust. Valve P/A connections use PC1001 at PT1/8. Keep one powered line and the valve exhaust open for spring return.
3V106 is direct-acting NC 3/2: energized P→A retracts the rod; de-energized A→R allows the spring to extend it. Its 1.2 mm orifice is conditional on verified flow/response, not the retained 500 mm/s example. Blank entry is DIN; I is 0.5 m flying leads. AC tolerance ±15%, DC ±10%; 220/110 V AC 4.5 VA, 24 V AC 5 VA, 24 V DC 3 W, 12 V DC 2.5 W. Choose one version; the retained 5/2 reference does not establish a single-acting connection.
The selected branch is limited to 0.2–0.8 MPa and −20 to +70°C, subject to temperature derating and lower installed-component limits. The body remains rated 0.2–1.0 MPa. The original stopping-load, absorber recovery, self-lock and reference-speed limits still apply.
Use BSL01 at selected valve exhaust R (PT1/8), never at cylinder work ports. The original BSL02 has a different thread and is not a direct fit here. PSA10 requires exact 10 mm OD soft nylon/PU tube; rating 0–1 MPa, −20 to +70°C. Orient by the body flow symbol; no A/B order suffix. Closed adjustment is not safety isolation.
The blue 100 m rolls are packaging alternatives, not installed lengths. Both are rated 1 MPa at 23°C; US98A is −20 to +70°C and UE95A −40 to +70°C. Minimum bend radii are 25/20 mm respectively. Apply temperature derating and the common circuit limits.
Weight reference
1302 g catalog calculation/reference. The catalog states that actual product weight governs; packaging and shipping weight are excluded.
