HMD 228M9-S High-Rigidity Precision Injection Molding Machine
Four screw options · New clamping mechanism · Linear-guide injection unit
HMD 228M9-S sits on the 2280 kN platform of the M9-S series with four screw options from Φ46 to Φ60, balancing large shot capacity with precision injection control for medium-large appearance and structural parts.
Model Overview
| Item | Specification |
|---|---|
| International rating | 1005/228 |
| Application | Home appliance and automotive appearance parts, precision structural parts, medium-large daily-use products |
| Core configuration | New clamping mechanism + asymmetric injection unit + linear guides + closed-loop permanent-magnet servo pump |
| Control system | High-performance dedicated injection-machine controller; imported electrical components from ABB / Schneider / Moeller |
Injection Unit
Φ46 / Φ50 / Φ55 / Φ60 screw options.
| Item | Unit | Option A | Option B | Option C | Option D |
|---|---|---|---|---|---|
| Theoretical shot volume | cm³ | 457 | 540 | 653 | 777 |
| Shot weight (PS) | g | 416 | 491 | 594 | 707 |
| Shot weight (PS) | oz | 14.7 | 17.3 | 21.0 | 24.9 |
| Injection rate | g/s | 212 | 251 | 304 | 361 |
| Screw diameter | mm | 46 | 50 | 55 | 60 |
| Injection pressure | MPa | 220 | 186 | 154 | 130 |
| Screw L/D ratio | — | 23.7:1 | 22:1 | 20:1 | 18:1 |
| Screw stroke | mm | 275 | 275 | 275 | 275 |
| Screw speed | r/min | 0 ~ 235 | 0 ~ 235 | 0 ~ 235 | 0 ~ 235 |
Clamping Unit Parameters
| Item | Unit | Specification |
|---|---|---|
| Clamping force | kN | 2280 |
| Mold opening stroke | mm | 520 |
| Platen size | mm | 845 × 795 |
| Distance between tie bars (H × V) | mm | 570 × 520 |
| Max. daylight | mm | 1120 |
| Mold thickness (min–max) | mm | 220 ~ 600 |
| Ejector stroke | mm | 160 |
| Ejector force | kN | 77 |
Power and Heating System
| Item | Unit | Specification |
|---|---|---|
| Hydraulic system pressure | MPa | 17.5 |
| Pump motor power | kW | 36.5 |
| Heater power | kW | 15.6 |
| Number of temp control zones | — | 5 |
Other Parameters
| Item | Unit | Specification |
|---|---|---|
| Oil tank capacity | L | 255 |
| Overall dimensions (L × W × H) | m | 6.0 × 1.6 × 2.2 |
| Machine weight | Ton | 9.3 |
Machine Dimensions
| A | B | C | D | E |
|---|---|---|---|---|
| 1920 | 5400 | 6010 | 2170 | 1560 |
Unit: mm. A is machine height, B is machine length, C is total length including injection unit, D is clamping section length, E is machine width.
Core Advantages
New Clamping Mechanism
Smooth and fast operation with optimized tie-bar spacing and mold-opening stroke. Higher overall mechanical strength and rigidity, lower deformation and internal stress, and good fatigue resistance — especially suited to short molding cycles and precision products.
Asymmetric Injection Unit · Universal Screws
The injection unit uses an asymmetric front/rear mounting layout, allowing screws across L/D 17–25 to be fitted without redesign. PET and thermoset barrel sets are interchangeable for flexible configurations.
Diagonal Dual-Carriage Layout
A diagonal dual-carriage layout balances barrel loading during high-pressure injection, preventing bending or fracture of ultra-small-diameter screws caused by uneven loading.
Linear-Guide Injection Unit
Linear-guide guidance and a lightweight design on the injection moving platen greatly improve dynamic response. Reduced friction lowers motor load during charging and improves back-pressure accuracy.
Upgraded Injection Performance
Compared with the M8 series, M9 standard screws deliver 10%–15% higher peak injection pressure and speed.
Closed-Loop Servo Energy-Saving Control
A closed-loop permanent-magnet servo pump delivers precise, stable, and energy-saving control, paired with imported ABB / Schneider / Moeller electrical components for long service life.