Product Overview

The Hot Runner Specialized Power Tool Set is a complete set of specialized power tools developed for the disassembly, assembly, repair, mold cleaning and maintenance, and machining and debugging of hot runner components. It is designed for the disassembly, assembly, and cleaning of various components such as manifold plates, hot nozzles, valve pins, heating rings, thermocouples, and other components. Unlike standard general-purpose power tools, these tools are heat-resistant, deliver precise torque, and are designed to operate in confined mold cavities. They significantly improve efficiency in mold assembly and disassembly, hot runner maintenance, and the removal of carbon deposits, making them essential equipment for mold shops and hot runner after-sales maintenance services.

I. Core Categories and Functional Descriptions

1. Dedicated Hot Runner Electric Torque Wrench

Designed for the installation and removal of hot runner clamping caps, manifold locking screws, and heat shield mounting bolts. Features an adjustable torque lock function to precisely control tightening force, preventing high-temperature thread seizure or stripping, as well as deformation of hot nozzle copper sealing gaskets. Long and short sockets accommodate tight mold cavities, while high-temperature-resistant socket heads allow direct removal of mold components from molds still retaining residual heat immediately after shutdown. Available in rechargeable cordless and corded industrial models.

Applications: Installation and removal of hot nozzle locking caps; tightening of manifold clamping screws; and disassembly and installation of entire hot runner systems within the mold.

2. Electric Internal Grinder / Electric Carbon-Removal Grinder

Specifically designed to clean carbonized plastic deposits from hot nozzle runners and manifold runners, it comes with a slim-shank extended grinding head, a diamond grinding head, and a copper wire polishing head. It can penetrate deep into the inner walls of narrow runners to quickly remove high-temperature carbonized resin deposits and plastic decomposition residues without scratching the mirror-polished surface of the runners; the slender handle is suitable for cleaning the interiors of hot runners with small pitch, multi-cavity, and fine-hole configurations.

Applications: Clearing resin blockages in hot runners, cleaning carbonized residue from manifold plates, and grinding and polishing color-change residue and impurities.

3. Electric Valve Pin Grinding and Polishing Machine

A specialized tool for needle valve hot runner systems, used for mirror-finish polishing and wear repair of valve pin heads and gate mating sections. With stable, low-speed output and compatible with polishing consumables of various grit sizes, it repairs valve pin wear and burrs, ensuring a tight seal between the valve pin and the gate. This prevents material leakage and drips during high-pressure injection molding and significantly extends the service life of the valve pins.

Applications: Repair of hydraulic/pneumatic cylinder valve pins, polishing of gate bushing bores, and precision grinding of sealing surfaces.

4. Electric Deep-Hole Drilling Tool

Used for machining and repairing hot runner components. Includes an extended deep-hole drill assembly capable of machining hot nozzle temperature measurement holes, pre-drilled holes for manifold heating elements, and threaded pilot holes. Compatible with H13 and SKD61 hot-work die steels; the high-hardness drill bits are wear-resistant. The handheld, portable model is suitable for small-batch mold modifications and component repair drilling.

5. Electric Heat Gun (Dedicated for Hot Runner Disassembly and Assembly)

A high-power, constant-temperature heat gun with adjustable temperature settings in incremental steps. It is designed for localized heating and softening of stuck hot nozzles, adhered gaskets, and carbonized resin clumps. Low-temperature heating during disassembly minimizes damage to heating elements and thermocouple wires. Unlike standard heat guns, it features a slender, elongated nozzle that can reach into narrow mold cavities for precise, localized heating.

Applications: Removing stuck nozzles and manifold plates, softening and cleaning cured adhesive residue, and removing aged thermal insulation spacers.

6. Electric Cable Stripping and Crimping Combination Machine

Designed for processing hot runner heating wires and K-type thermocouple connections, this machine automatically strips the outer sheath of high-temperature fiberglass cables and crimps terminals securely without loosening. This prevents loose connections that could lead to temperature control failures or overheating short circuits. It is compatible with wiring operations for multi-channel temperature control boxes with aviation connectors.

II. General-Purpose Auxiliary Power Tools

Cordless Micro Screwdriver: For installing and removing small screws in confined mold cavities; used for disassembling junction boxes, terminal clamps, and positioning pin retaining plates;

Electric Ultrasonic Cleaner: For removing adhesive residue from entire components; batch cleaning of valve needles, nozzles, and sealing gaskets; removes deep-seated carbon deposits;

Electric wire brush grinder: Rapidly cleans overflowed carbonized adhesive from manifold surfaces and residual plastic from mold parting lines.

III. Core Product Advantages

Highly specialized and adaptable, designed for the confined spaces of hot runner systems, high-temperature steel, and precision components, preventing scratches and thread damage caused by generic tools;

Adjustable torque and speed enable standardized precision machining and disassembly, reducing component scrap caused by human error;

The wireless charging model supports operation without a power source at the mold site or next to the injection molding machine, making mobile maintenance more convenient;

Significantly reduces the time spent on manual grinding and disassembly, improving the efficiency of hot runner repair, mold modification, and maintenance, and minimizing downtime;

Complete tool sets come with matching consumables; grinding heads, sleeves, and polishing consumables are standardized for easy replacement.

IV. Applicable Scenarios

Hot runner component machining by manufacturers; daily mold maintenance in injection molding shops; on-site hot runner after-sales repairs; periodic carbon cleaning and maintenance of multi-cavity needle valve systems; and mold modification and assembly.