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Plastics and Chemicals

Industry Robot Application Solutions · 5 Brands Coverage · 4 types of typical processes

Robot performing pick-and-place beside an injection molding machine
Plastics and chemicals: part removal, degating and downstream handling
OVERVIEW · Industry Overview

Applications of robots in the plastics and chemical industries

Typical workcell in operation
Typical workcell in operation

In the injection molding industry, the processes of part pickup, embedding, and gate removal are mature applications of robots; Domestic brands like TOPSTAR have a high market share in the injection molding machine supporting sector. The chemical industry focuses on handling and filling in explosion-proof environments. Henghuan provides the injection molding workshop with maintenance, program adjustment, and second-hand sales of pick-up robots and robots.

Covering branded equipment

Robot brands within Henghuan's service scope that have practical applications in the plastics and chemical industries. Click to enter the brand page to view series and model specifications.

Henghuan can provide services for the plastics and chemical industries

All six core businesses can be procured independently or in combination.

Applied technology services

Process validation, workstation solutions, programming and teach-in and production ramp-up support, and turnkey delivery of robot applications.

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Sales of new industrial robots

Authorized-style sales of brand-new mainstream robots with selection support for new production lines and capacity expansion.

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Research and development of automation equipment

Research, development, integration, and delivery of end-effectors, conveyor positioning, safety peripherals, and complete control systems.

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Research and development of algorithms and control systems

Motion planning, machine vision, and PLC/SCADA system development to address takt-time bottlenecks, accuracy, and data interconnection.

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Robot rental

Short-term rental, long-term rental and lease-to-own for in-stock models, long-term rental, and lease-to-purchase transfer, including transportation, installation, commissioning, and lease-term maintenance.

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Software and hardware upgrade services

Controller retrofits, software and firmware upgrades, mechanical refurbishment, and safety upgrades restoring performance to older equipment.

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Maintenance and repair

On-site inspection, fault diagnosis and repair, and annual maintenance contracts covering 1,310 models from 21 brands.

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Used & in-stock robot sales

We buy back used robots and handle inspection, refurbishment and resale; every unit ships with inspection records and a warranty, and trade-ins can offset new purchases.

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Industry Status: Injection molding automation is mature, and chemical industry scenarios are rapidly penetrating

STAUBLI industrial robot application photo (STAUBLI official site)
STAUBLI industrial robot application photo (STAUBLI official site)

Automation in the plastics industry is hereInjection molding workshopThe main battleground: injection molding machine extraction (robotic arm/six-axis), insert insertion, post-processing (drainage, assembly, inspection), packaging and palletizing are highly standardized, and horizontal robotic arms are almost standard for injection molding machines; The current upgrade direction is "injection molding island unitization"—one robot serves 2–4 injection molding machines, completing removal, trimming, inspection, and placement all in one. Workshop labor has evolved from "one person viewing three machines" to "one person viewing one island."

Robot applications in the chemical industry are concentratedPackaging and handling of the rear section(Stacking and filling line loading and unloading of bagged/drum products) andReplacing dangerous positions(Feeding, sampling, valve operation), explosion-proof requirements are the core threshold: according to the explosion hazard zone division (Zone 1/Zone 2), choose explosion-proof certified equipment (Ex d/Ex p/Ex ib), and every detail in electrical and mechanical design must correspond to the explosion-proof level.

Typical workstation in the plastics and chemical industry
Segmented scenariosEquipment typeTechnical/compliance points
Injection molding removal and insertsHorizontal robotic arm / six-axisCompatible with injection molding machine safety interlocks (EUROMAP 67/TIA interface) and molding cycle
Drainage port and post-processingSix axes + cutter/grindingSprue material recovery channels and tool life management
Injection molded part inspection and assemblySCARA+ VisionConsistency inspection of multi-cavity components and missing insert detection
Bagged products are palletizedPalletizing robot + end clamping endDust explosion-proof (plastic powder/chemical powder), bag body shaping
Barrel filling and unloadingSix-axis + clamp / vacuumExplosion-proof zone certification and filling interlock
Dangerous goods feeding/samplingExplosion-proof six-axis + dedicated endZone 1/2 explosion-proof certification, electrostatic grounding, operating procedures

Eight major business locations in the plastics and chemical industry

Applied technology servicesStarting from injection molding island planning: the modular design of mold layout, extraction paths, and subsequent process connections directly determines molding cycles and labor numbers—we create solutions based on the "island," with cycle time calculations accurate to the second level, and investment recovery quantified by the number of positions saved and yield improvements.

UR industrial robot application photo (UR official site)
UR industrial robot application photo (UR official site)

Research and development of automation equipmentCovering explosion-proof non-standard products: explosion-proof control cabinet modification, intrinsic circuit design, anti-static terminals and grounding systems—there are few standard products in chemical scenarios, and customized R&D capability and explosion-proof compliance experience are hard criteria for supplier selection.

Maintenance and repairCompatible with continuous production: chemical units run 24/7, with maintenance windows arranged for annual major overhauls; Our maintenance contracts are divided into two types of services: "Daily Inspection (Online) + Major Overhaul Special (Parking Window)", with spare parts stockpiled by critical grade.

Industry Q&A

ESTUN industrial robot application photo (ESTUN official site)
ESTUN industrial robot application photo (ESTUN official site)
How are robots in explosion-proof areas certified?

Check the complete machine explosion-proof certificate: The main body (motor, encoder, switches) is designed according to Exd explosion-proof or Exp positive voltage design; the control cabinet is placed by area (safe zone) or synchronously explosion-proof; cable entry devices have explosion-proof Granheads; static electricity grounding can be measured. During procurement, verify that explosion-proof labels match hazardous area grades (e.g., Ex p IIB T4 for Zone 1), and conduct explosion-proof inspections after installation—our explosion-proof retrofits include complete certification documents and acceptance support.

The injection molding workshop already has horizontal walking robots; is it still necessary to replace the six-axis?

Depends on process requirements: simply remove + place, horizontal walking manipulators are sufficient and inexpensive; When insert embedding, multi-machine service, and post-processing (drain/inspection/assembly) are required, the flexible path of the six-axis is irreplaceable. Our usual recommendation is a "hybrid configuration": simple stations retain the robotic arm, compound stations use six axes, not advanced just for the sake of advancement.

How can the explosion risk of plastic dust be controlled?

According to GB 15577 Dust Explosion Protection Specification: Dust Explosion Characteristic Test (Kst/Pmax) determines explosion-proof rating, explosion-proof design of dust removal system explosion relief, equipment grounding and anti-static, and regional dust accumulation cleaning system. Grinding scenarios involving magnesium-aluminum powder and other metal dust have higher risk levels, and the plan must undergo explosion-proof special review—this is the prerequisite process for our related projects.

Do equipment in the plastics and chemical industry need technical support?

Tell us your brand model, processes, and equipment status. Henghuan offers advice on robot maintenance, servicing, second-hand purchase, sales, and selection for the plastics and chemical industries. Rooted in Yilong, focused on Sichuan and Chongqing, serving the vast Southwest.

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Service areas (by response priority): based in Nanchong, with same-day coverage of Shunqing, Gaoping and Jialing districts plus Langzhong, Yilong, Xichong, Nanbu, Yingshan and Peng'an; province-wide service across Sichuan (Chengdu, Mianyang, Deyang, Yibin, Luzhou, Zigong); on-site within 48 hours in Chongqing; scheduled visits to Kunming, Guiyang and nearby prefecture-level cities such as Qujing, Yuxi and Zunyi; remote diagnostics and mail-in repair for customers outside these regions. View full service areas →