The KR-129B bench-top pneumatic micro injection molding equipment is a compact low-volume molding solution tailored for material R&D labs, prototype development workshops and small-batch sample production. It adopts air-driven plunger injection structure instead of bulky hydraulic systems, requiring only standard single-phase power and regular air compressor to operate. The machine supports most mainstream thermoplastic raw materials, quickly produces tiny plastic test specimens, custom craft prototypes and small precision parts without investing in large industrial molding equipment.

Suitable for mold materials including aluminum alloy, brass and die steel, this lightweight molding unit drastically cuts trial production costs and shortens material formula verification cycles. It is widely adopted by polymer research institutes, university material laboratories, new material modification factories and small custom plastic processing studios.

Core Product Advantages

1. Pneumatic Driving, Low Energy & Compact Layout
   Full air-pressure injection power design eliminates high-power hydraulic stations, total heating power ranges from 800W to 1200W according to different shot weight models. The whole machine occupies minimal desktop space, equipped with adjustable balance foot pads for stable placement on ordinary lab countertops; no special factory ground or industrial power transformation is needed, easy to relocate between work stations.
2. Detachable Heating Cavity, Avoid Material Cross-Contamination
   Independent removable melting cylinder assembly allows complete disassembly and thorough cleaning when switching resin types. Operators can fully clear residual old plastic particles inside the cavity, effectively preventing color mixing and material contamination during formula comparison experiments, greatly improving test data authenticity for new material development.
3. Precise PID Constant Temperature Control System
   Independent dual digital temperature control modules regulate heating barrel temperature from ambient up to 450℃ with control accuracy ±3℃. Users set targeted heating parameters matching PP, ABS, PC, PET, PVC, EVA, HDPE and other plastics, ensuring uniform plasticizing without local over-burning or incomplete melting of granules.
4. Wide Mold Compatibility & Adjustable Injection Parameters
   Three size specifications match different mold dimensions, maximum mold mounting space up to 210×200×210mm. Injection time can be freely set within 0–9999 seconds, standard 1-ton stable injection pressure ensures consistent filling for thin-wall and tiny cavity molds, supporting flexible process debugging for different product structures.
5. Multi-Layer Safety Protection Mechanism
   Transparent fully enclosed safety door forms primary isolation against hot melt splashing during operation; optional safety light grating adds secondary interlock protection, automatically cutting off injection output once the door is opened to avoid scald accidents. All heating components are wrapped with heat insulation layers to reduce surface temperature of the cabinet shell.
6. Low Operation Threshold For New Users
   Simplified physical button control panel with independent heating switch and injection trigger buttons. No complex programming learning required; new staff can complete feeding, heating, mold clamping and injection molding operations after short demonstration, ideal for student teaching and frequent small-batch prototype production.

New modified plastic formula verification, tensile/impact standard test strip one-step molding, contrast test of different filler and flame retardant additives.

Plastic processing course practical training, student graduation project prototype manufacturing, small sample demonstration for material mechanics experiments.

Consumer electronic miniature accessories, cosmetic plastic parts, toy small components, custom craft sample rapid trial production.

Insulating small plastic inserts, wiring harness connectors, battery auxiliary plastic parts small-batch pre-production verification.

PLA, PBAT degradable granule forming trial, biodegradable product mold process parameter debugging.

Standard Factory Delivery Kit

1. KR-129B main pneumatic mini injection molding host (select 20/40/60g shot weight model)
2. Detachable high-temperature melting heating cavity assembly
3. Pneumatic plunger injection drive unit and air pressure regulating valve
4. Dual independent digital PID temperature control panel
5. Transparent safety protective door assembly (safety grating optional)
6. Machine leveling foot pads and mold fixing bolt set
7. Multilingual operation guide matching plastic molding processing requirements
8. Factory temperature & injection pressure calibration certificate

Global Distributor & After-Sales Support

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