Address
304 North Cardinal St.
Dorchester Center, MA 02124
Work Hours
Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM
Engineered for 8×6 mm and 9.5×7.5 mm tubes, this servo-driven LLDPE/PCT extrusion line combines a single-screw extruder, vacuum calibration tank, servo haul-off & rotary cutting, and intelligent temperature control for clean, consistent, and efficient production.
Overview
Manufacturers of drinking straws, laboratory micro tubing, protective sleeves, and insulation micro pipes demand dimensional QTech-Machinery introduces a shared LLDPE/PCT small diameter tube extrusion line that switches materials and sizes on the same platform while maintaining consistent quality and productivity.
Core Highlights
1. Precision Servo Single-Screw Extruder (QX-SJ50/28)
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- Throughput 10–40 kg/h; 50 mm screw; L/D 28:1; 0–70 rpm variable speed
- Drive: 22 kW Inovance PMSM with heavy-duty gearbox
- Metallurgy: 38CrMoALA screw/barrel, nitrided 0.5–0.8 mm, plated for wear resistance
- Thermal: 4-zone cast aluminum heating with insulation (8.8 kW); fan cooling (0.18 kW × 4)
- Control: Mitsubishi PLC + 15″ Kunlun HMI; temperature window 0–300℃
- Die: 4 reserved heating zones (3 kW), Weipu industrial connectors for heaters and thermocouples
2. Dedicated Small Tube Molds
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- Sizes: LLDPE 8×6 mm; PCT 8×6 mm and 9.5×7.5 mm
- Materials: S316H mold and mandrel; brass calibration sleeve
- Process: rough → precision → high-speed polish → inner electroplating; spiral channel machined on imported centers for uniform melt distribution
3. Vacuum Cooling Calibration Tank Line
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- 4500 × 230 × 235 mm; 1000 mm vacuum section with tempered glass cover
- 304 SS structure (2.0/1.5 mm), pre-cooling at inlet, digital water level/temperature display
- Vacuum system: pump, gauges, manual valve, silencer; 0 to −50 kPa with ±0.1 kPa precision
- Mobility: hand-wheel X/Y/Z adjustments; outlet blow-off; multiple adjustable PUM guide rollers
- Electrical: brand contactors/buttons; rigid welded base
4. Servo Belt Haul-Off & Integrated Cutter
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- Haul-off length 1000 mm; center height 1000 ± 50 mm
- Belts: 80 mm multi-fiber wear-resistant polyurethane
- Drive: dual Inovance servos with high-precision planetary gearboxes
- Control: Mitsubishi PLC + Kunlun HMI; independent speed; PTFE vertical guide roller
- Structure: 10 mm steel plates and rigid frame for vibration-free traction
5. Rotary Fly-Knife Cutter
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- 1.8 kW servo; rotary cutting; extended copper clamps for stable gripping
- Software-set cutting length; adjustable feed sleeve clearance; Mitsubishi PLC + Kunlun HMI
6. Post-Processing Options
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- Automatic chamfering (manual operation, pneumatic clamping, 1.1 kW motor)
- Manual opening (servo drive, V-blade, Siemens PLC + Kunlun HMI)
- Clean ends, neat bevels, and consistent slotting for downstream requirements.
7. Auxiliary Cooling
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5 HP shell-and-tube chiller, 5–35℃ control, wind-cooled condenser, stainless piping, and robust protections stabilize dimensions and surface gloss.
Operating Window & Utilities
Center height 1000 ± 50 mm; right-to-left operation; indoor use
Production 10–40 kg/h; target sizes LLDPE 8×6 mm; PCT 8×6 mm / 9.5×7.5 mm
Installed power ~32 kW; 380 V / 50 Hz, three-phase
Cooling water ≤ 20℃, ≥ 0.3 MPa; compressed air 1 m³/min, ≥ 0.6 MPa; non-condensing humidity ≤ 85%
Quality & Clean Manufacturing Multi-zone thermal control, precise vacuum calibration, and servo traction deliver uniform wall thickness, smooth surfaces, and stable dimensions. Stainless tanks and tempered covers support hygienic production suitable for straw extrusion and clean applications.
Applications LLDPE drinking straws, PCT micro tubing for labs, protective sleeves, and light industrial components.
Support & Service Factory testing, installation, commissioning, warranty for non-human faults, rapid response, spare parts, and lifetime technical service.
Call to Action Scale hygienic straw extrusion or precision micro tubing with a customized, energy-efficient, servo-controlled line from Zhangjiagang Qinxiang Machinery. Contact us for details.
We are a professional plastic machinery manufacturer with 15 years of experience in extruder and extrusion line development. We support on-demand customization—including capacity tuning, material and size switching, automation and digital upgrades, hygienic process design, and quality traceability—so your equipment aligns perfectly with your process and market goals. Contact us for a tailored proposal and process evaluation.
