The Pet Bottles Caps Injection Molding Machine is a hydraulic-driven high-pressure molding system designed for mass production of PET bottle caps, packaging closures, and industrial plastic components.
Machine Models
The SZ-5500A model is designed for large-scale industrial production, offering a high clamping force of up to 5500 kN and supporting large multi-cavity molds for high-output production lines.
The SZ-1300A model is designed for compact and medium-scale production, providing stable injection performance with lower energy consumption and a smaller footprint, making it suitable for flexible production setups or limited factory space.
Technical Specifications – SZ-5500A
|
Section |
Item |
Unit |
Specification |
|
INJECTION UNIT |
Screw Diameter |
mm |
80 / 85 / 90 |
|
Screw L/D Ratio |
L/D |
22.3 / 21 / 19.8 |
|
|
Theoretical Shot Volume |
cm³ |
2141 / 2418 / 2710 |
|
|
Shot Weight (PS) |
g |
1948 / 2200 / 2466 |
|
|
Injection Pressure |
MPa |
188 / 167 / 149 |
|
|
Theoretical Injection Rate (PS) |
g/s |
427 / 482 / 541 |
|
|
Plasticising Capacity (PS) |
g/s |
80 / 100 / 118 |
|
|
Screw Torque |
N·m |
5170 |
|
|
Max. Screw Rotation Speed |
r/min |
150 |
|
|
Injection Stroke |
mm |
425 |
|
|
CLAMPING UNIT |
Max. Clamping Force |
kN |
5500 |
|
Opening Stroke |
mm |
820 |
|
|
Tie Bar Distance (V × H) |
mm |
810 × 810 |
|
|
Mold Height (Min–Max) |
mm |
350 – 820 |
|
|
Max. Daylight |
mm |
1640 |
|
|
Ejector Force |
kN |
150 |
|
|
Ejector Stroke |
mm |
210 |
|
|
Ejector Units |
pcs |
13 |
|
|
OTHER |
Pump Motor Power |
kW |
55 |
|
Pump Pressure |
MPa |
16 |
|
|
Heating Power |
kW |
33 |
|
|
Heating Zones |
pcs |
6 |
|
|
Machine Size (L×W×H) |
m |
8.4 × 2.2 × 2.6 |
|
|
Net Weight |
ton |
23.5 |
|
|
Oil Tank Capacity |
L |
1000 |
|
|
International Model |
- |
5500–4040 |
Technical Specifications – SZ-1300A
|
Section |
Item |
Unit |
Specification |
|
INJECTION UNIT |
Screw Diameter |
mm |
35 / 40 / 45 |
|
Screw L/D Ratio |
L/D |
24 / 21 / 18.7 |
|
|
Theoretical Shot Volume |
cm³ |
173 / 226 / 286 |
|
|
Shot Weight (PS) |
g |
158 / 206 / 260 |
|
|
Injection Pressure |
MPa |
235 / 180 / 142 |
|
|
Theoretical Injection Rate (PS) |
g/s |
110 / 143 / 181 |
|
|
Plasticising Capacity (PS) |
g/s |
13.8 / 19.7 / 27.1 |
|
|
Screw Torque |
N·m |
740 |
|
|
Max. Screw Rotation Speed |
r/min |
250 |
|
|
Injection Stroke |
mm |
180 |
|
|
CLAMPING UNIT |
Max. Clamping Force |
kN |
1300 |
|
Opening Stroke |
mm |
400 |
|
|
Tie Bar Distance (V × H) |
mm |
420 × 420 |
|
|
Mold Height (Min–Max) |
mm |
160 – 440 |
|
|
Max. Daylight |
mm |
840 |
|
|
Ejector Force |
kN |
31.4 |
|
|
Ejector Stroke |
mm |
100 |
|
|
Ejector Units |
pcs |
5 |
|
|
OTHER |
Pump Motor Power |
kW |
13 |
|
Pump Pressure |
MPa |
16 |
|
|
Heating Power |
kW |
9.2 |
|
|
Heating Zones |
pcs |
4 |
|
|
Machine Size (L×W×H) |
m |
4.7 × 1.25 × 1.85 |
|
|
Net Weight |
ton |
4.3 |
|
|
Oil Tank Capacity |
L |
360 |
|
|
International Model |
- |
1300–410 |
Application Fields
Beverage & Beverage Packaging: High-speed, high-cavity production of water, carbonated soft drink (CSD), and juice bottle caps.
Pharmaceutical Packaging: Strict adherence to precision requirements for tamper-evident closures, flip-top caps, and medical-grade containers.
Cosmetics & Personal Care: Production of aesthetic, high-quality screw caps for shampoos, lotions, and creams.
Food Processing: Reliable molding of food-safe storage container lids, seasoning caps, and condiment closures.
Industrial & Chemical Packaging: Robust production of heavy-duty caps for chemical containers, detergent bottles, and industrial fluids requiring high mechanical strength
Machine Configuration
Hydraulic system: High-pressure stable oil circuit
Control system: TECHMATION industrial PLC (Taiwan)
Electrical components: SCHNEIDER / OMRON
Servo system: Optional high-speed injection control
Heating system: Multi-zone temperature control
Safety system: Emergency stop + overload protection
Factory Strength
We are ZHANG JIA GANG SHEN ZHOU MACHINERY CO., LTD, a professional injection molding machine manufacturer in China.
- 20+ years of manufacturing experience
- Full in-house production line
- Export to 50+ countries worldwide
- Over 1500 global industrial customers
- OEM / ODM customization capability
- Dedicated engineering and QC team
Our machines are designed for industrial stability, long service life, and cost-efficient production.
Company Profile
Certifications
Our production system follows ISO 9001 quality management standards, and machines are certified with CE compliance for international markets.
All key hydraulic and electrical components are tested under strict inspection procedures before shipment, ensuring stable performance and compliance with industrial safety requirements.
Packaging & Shipping
We ensure safe delivery for international shipping:
- Anti-rust oil protection for metal parts
- Shock-resistant wooden export packing
- Modular disassembly for container loading
- Steel base fixation for machine stability
- Full loading inspection before shipment
Shipping options:
- Sea freight (main option)
- Air freight (urgent delivery)
- Global logistics support for spare parts
Customer Feedback
Our machines are operating in multiple regions, including Africa, South America, the Middle East, and Southeast Asia.
A customer from Ghana confirmed that the machine has been running stably after installation and expressed satisfaction with our technical support response and communication efficiency during operation.
"Your machine is working well. You have very good customer service."
We continue to support the customer with remote technical assistance and production optimization guidance.
FAQ
Q: What products can this machine produce?
A: It is mainly used for PET bottle caps, packaging closures, and industrial plastic parts.
Q: What is the delivery time?
A: Standard models are delivered within 30–60 days, depending on configuration.
Q: Do you support custom molds?
A: Yes, we provide full mold compatibility consultation and machine adjustment support.
Q: Is installation service available overseas?
A: Yes, we provide remote guidance and overseas engineering service when required.
|
ITEM |
UNIT |
SZ-1300A |
||
|
INJECTION UNIT |
||||
|
SCREW DIAMETER |
mm |
35 |
40 |
45 |
|
SCREW LID RATIO |
L/D |
24 |
21 |
18.7 |
|
THEORETICAL SHOT VOLUME |
CM3 |
173 |
226 |
286 |
|
SHOT WEIGHT(PS) |
g |
158 |
206 |
260 |
|
INJECTION PRESSURE |
Mpa |
235 |
180 |
142 |
|
THEORETICAL INJECTION RATE(PS) |
g/s |
110 |
143 |
181 |
|
PLASTICISING CAPACITY |
g/s |
13.8 |
19.7 |
27.1 |
|
SCREW TORQUE |
N.m |
740 |
||
|
MAX.SCREW ROTATE SPEED |
r/min |
250 |
||
|
INJECTION STROKE |
mm |
180 |
||
|
CLAMPING UNIT |
||||
|
MAX.CLAMPING FORCE K |
KN |
1300 |
||
|
MAX.OPENING STROKE |
mm |
400 |
||
|
SPACE BETWEEN TIE BARS |
mm |
420×420 |
||
|
MOULD HEIGHT |
mm |
160-440 |
||
|
MAX.DAYLIGHT |
mm |
840 |
||
|
EJECTOR FORCE |
KN |
31.4 |
||
|
EJECTOR STROKE |
mm |
100 |
||
|
EJECTOR QUANTITY |
5 |
|||
|
OTHER |
||||
|
PUMP MOTOR POWER |
KW |
13 |
||
|
PUMP PRESSURE |
Mpa |
16 |
||
|
HEATING POWER |
KW |
9.2 |
||
|
HEATING ZONE |
4 |
|||
|
SIZE |
m |
4.7×1.25×1.85 |
||
|
NET WEIGHT |
t |
4.3 |
||
|
OIL TANK CAPACITY |
L |
360 |
||
|
INTERNATIONAL DESIGNATION |
1300-410 |
|||
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