TDB-50A — standard configuration
| Parameter | Unit | TDB-50A |
|---|---|---|
| Model | — | TDB-50A |
| Maximum product volume | L | 50 |
| Station | — | Single station |
| Dry cycles (not a production rate) | cycles/h | 400 |
| HDPE extrusion output | kg/h | 130 |
| Machine weight | t | 14 |
| Machine dimensions (L × W × H) | m | 5.9 × 2.9 × 4.1 |
| Maximum die diameter | mm | 350 |
| Die head heating zones | — | 6 |
| Accumulator capacity | L | 6.6 |
| Die head heating power | kW | 24.5 |
| Platen distance | mm | 450–1150 |
| Clamping force | kN | 260 |
| Screw diameter | mm | 90 |
| Screw L/D ratio | — | 25:1 |
| Screw heating power | kW | 17.4 |
| Screw heating zones | — | 4 |
| Screw motor power | kW | 37 |
| Hydraulic pump drive power | kW | 21 + 4 |
| Total installed power | kW | 103.9 |
| Air consumption | m³/min | 1 |
| Blow pressure | MPa | 0.6 |
| Cooling water pressure | MPa | 0.3 |
| Cooling water flow | L/min | 65 |
| Maximum mold size (W × H) | mm | 700 × 950 |
Parameters are taken from the product documentation. Please confirm the final configuration with our engineers before ordering.
Model and application
The TDB-50A is the current designation for the former TDB-50F. This single-station accumulator-head machine is rated for products up to 50 L. Its standard configuration uses a 90 mm screw, a 6.6 L accumulator and 260 kN clamping force.
Product and mold selection
For larger jerry cans and industrial containers, evaluate the mold width and height together with the required shot and wall distribution. The standard mold envelope is 700 × 950 mm, with a 450–1150 mm platen distance. The listed 130 kg/h is HDPE extrusion output, not the number of finished drums produced per hour.
Configuration comparison
The TDB-50A sits between the 25 L and 120 L configurations. Its 6.6 L accumulator is larger than the TDB-25A’s 4 L unit, while the TDB-120A increases the accumulator to 12.8 L and the clamp to 740 kN. Use the product and mold requirements to choose the step up.
| Standard configuration | TDB-25A | TDB-50A | TDB-120A |
|---|---|---|---|
| Maximum product volume | 25 L | 50 L | 120 L |
| HDPE extrusion output | 110 kg/h | 130 kg/h | 160 kg/h |
| Accumulator | 4 L | 6.6 L | 12.8 L |
| Clamping force | 215 kN | 260 kN | 740 kN |
| Maximum mold size (W × H) | 550 × 650 mm | 700 × 950 mm | 900 × 1450 mm |
Compare TDB-25A, TDB-50A and TDB-120A in the servo blow molding range.
How to read the specifications
Specifications are the standard configuration in Tongda’s latest brochure (printed pages 33–34), confirmed by Tongda’s marketing department. Custom configurations require a separate specification.
- HDPE extrusion output is a mass-flow specification, not finished products per hour.
- Dry cycles describe machine cycles, not the production rate of an accepted container or panel.
- Installed power is the machine rating, not measured electricity consumption. Auxiliary equipment needs a separate utilities review.
For a production estimate, send your drawing and requirements, including resin, target part weight, dimensions and required accepted output.
FAQ
What changed from TDB-50F to TDB-50A?
Tongda confirmed a model-name change. The website now uses TDB-50A and the current brochure standard configuration.
How does the TDB-50A compare with the TDB-25A?
The standard TDB-50A has a 6.6 L accumulator, 130 kg/h HDPE extrusion output and 700 × 950 mm mold envelope. The TDB-25A lists 4 L, 110 kg/h and 550 × 650 mm respectively.
Is 103.9 kW the continuous electricity consumption?
No. It is total installed power. Actual electrical consumption must be measured for the selected product, operating cycle and auxiliary equipment.
