HMD 688SCT Nylon Cable Tie Dedicated Injection Molding Machine
High-speed single-cylinder injection · Bimetallic screw and barrel · Reinforced dedicated platen
HMD 688SCT is a nylon cable tie dedicated injection molding machine on the 6880 kN platform with a Φ70 screw and high-rpm plasticizing system. Injection speed reaches 339 mm/s, suited to high-speed mass production with large nylon cable-tie molds and multi-cavity tooling.
Model Overview
| Item | Specification |
|---|---|
| International rating | 1691/688 |
| Application | Medium-large nylon cable ties and PA66 long-strip products in high-speed multi-cavity molding |
| Core configuration | High-speed single-cylinder injection mechanism + bimetallic screw and barrel + reinforced platen + permanent-magnet sync servo |
| Control system | Italian INOVA high-speed dedicated computer controller with 10-inch color LED display |
Injection Unit
| Item | Unit | Specification |
|---|---|---|
| Theoretical shot volume | cm³ | 1077 |
| Shot weight (PS) | g | 980 |
| Shot weight (PS) | oz | 34.6 |
| Injection speed | mm/s | 339 |
| Screw diameter | mm | 70 |
| Injection pressure | MPa | 157 |
| Screw L/D ratio | — | 22.5:1 |
| Screw stroke | mm | 280 |
| Screw speed | r/min | 358 |
Clamping Unit Parameters
| Item | Unit | Specification |
|---|---|---|
| Clamping force | kN | 6880 |
| Mold opening stroke | mm | 500 |
| Platen size | mm | 1270 × 1550 |
| Distance between tie bars (H × V) | mm | 775 × 775 |
| Max. daylight | mm | 1050 |
| Mold thickness (min–max) | mm | 200 ~ 550 |
| Ejector stroke | mm | 100 |
| Ejector force | kN | 110 |
Power and Heating System
| Item | Unit | Specification |
|---|---|---|
| Hydraulic system pressure | MPa | 17.5 |
| Pump motor power | kW | 72 + 72 |
| Heater power | kW | 36.6 |
| Number of temp control zones | — | 6 |
Other Parameters
| Item | Unit | Specification |
|---|---|---|
| Oil tank capacity | L | 600 |
| Overall dimensions (L × W × H) | m | 7.5 × 2.2 × 2.4 |
| Machine weight | Ton | 26 |
Core Advantages
Reinforced Cable-Tie Platen
A reinforced dedicated platen newly designed for nylon cable-tie processes uses FEA to optimize the overall mechanical structure, lowering stress and improving platen rigidity and service life.
High-Rigidity Clamping & Tie Bars
Premium alloy-steel tie bars with a special thread structure extend high-load service life; reinforced pins reduce contact stress, and self-lubricating steel/copper bushings ensure reliable high-speed operation.
High-Speed Injection System
A high-speed dedicated injection system reduces injection pressure and improves yield. The high-precision low-inertia single-cylinder injection unit greatly improves injection start-up response, well suited to nylon cable-tie products.
Nylon-Dedicated Bimetallic Screw and Barrel
A nylon cable-tie dedicated bimetallic screw and barrel offer fast feeding, excellent plasticizing performance, and longer service life. Standard far-infrared high-power heating delivers fast heat-up and good energy efficiency.
Servo Hydraulics · Energy-Saving and Efficient
High-speed dedicated oil motors deliver low pressure loss and long service life. A permanent-magnet sync servo motor with a dedicated driver provides fully digital closed-loop control, with precise pressure and flow and fast response.
INOVA Control System
Equipped with an INOVA high-speed dedicated controller and 10-inch color LED display, paired with imported Schneider, Omron, and other electrical components for stable performance and long service life.