SJ65/38 High-Speed Intelligent Extruder

— The energy-saving heart that lets 20–75 mm small diameters deliver “big throughput”

Product Description

It’s not a traditional “screw + motor,” but a complete intelligent melt factory that “feeds fast, plasticizes well, and saves more power”:

• A grooved feeding sleeve “pulls” pellets into a barrier screw; the 38:1 L/D lets the polymer “run a marathon” for full melting;

• A permanent‑magnet synchronous motor drives the melt at 150 rpm, delivering 180 kg/h with just 37 kW;

• Central water cooling + PID temperature control keeps melt temperature variation within 1 ℃; MPP conduit surfaces are glossy enough to mirror.

One main machine, compatible with MPP, HDPE, and PPR—small diameters at high line speeds.

Product Advantages

1. 15% energy saving—save 30,000 kWh per year
   Permanent‑magnet synchronous motor + INVT VFD, power factor 0.96. Uses 6 kWh less per hour than an induction motor. 8 h × 300 days × ¥0.8 ≈ ¥38,000 saved.

2. High L/D 38:1, more uniform plasticization
   Barrier mixing tip breaks the solid bed, reducing melt temperature by 8 ℃. Thick‑wall MPP doesn’t sag or flow; roundness meets spec directly.

3. Grooved feeding, output ↑30%
   Integrated nitrided 38CrMoAlA sleeve increases friction by 30%, so the feed section “bites” the polymer without slipping. Runs a steady 12 m/min.

4. One‑touch recipes, 10‑second material change
   7" HMI stores 50 recipes. Switching PE → MPP takes a single tap; heating zones jump to target automatically, cutting scrap by 20 kg.

5. 50,000 t without screw teardown
   Nitrided layer HV 950 with WC‑Co hardfacing resists abrasive wear. Written in this spec: “50,000 tons or 3 years” without removing the screw, saving ¥20,000 in maintenance.

Core Features

• 6-zone ceramic heating + cooling fans: heat up to 200 ℃ in 30 min; cool down in 15 min after stop—safe screw changes.

• Central constant‑temperature system: 80 ℃ water loop in the screw core prevents MPP overheating and decomposition—no yellowing.

• Bimetallic barrel: WC‑Co liner, HRC 58 hardness—handles glass‑fiber masterbatch with ease.

• Mobile rail frame: hand‑crank gearbox moves the whole barrel back 600 mm; one person can change the screw in 30 minutes.

• Ethernet interface: uploads current, temperature, and pressure in real time; monitor output on your phone—sleep easy.

In-Field Applications

Technical Specifications

Global Delivery

• Packaging: stretch film → pearl cotton → fumigated wooden crate; suitable for 1.2 m drop in sea freight.

• Lead time: 15 days standard; 25 days for 45 kW or special screws.

• Documents: CE certificate, English manual, USB videos, packing list, certificate of origin.

Voices from Users

• Shandong ×× Pipe (MPP conduit)
  “The 37 kW PM motor truly saves power. At the same 120 kg/h, it uses 6 kWh less than our old machine—payback within a year is visible.”

• Egypt Cairo Cable (HDPE water)
  “The 38:1 screw plasticizes well. For Φ32 SDR11 we run 12 m/min; the surface is smoother than our old unit—QA passed in one go.”

• Jiangsu ×× Medical (PPR hot water)
  “One‑touch recipes are so convenient. Switching PE → PPR in 10 minutes cut scrap by 20 kg—the shift leader loves it.”