China is home to the largest concentration of injection molding machine (IMM) manufacturers in the world, ranging from publicly listed industry giants to specialized mid-sized producers. For overseas buyers and importers, navigating this landscape can be challenging — brand reputation, production scale, and export experience vary widely from one manufacturer to the next.
This guide profiles ten established Chinese injection molding machine manufacturers to help international buyers understand who the major players are and what each one specializes in.
Criteria for Selecting Top Injection Molding Machine Brands in China
This list was compiled through research into publicly available information on China's leading injection molding machine manufacturers, focusing on companies that consistently appear across industry rankings, trade publications, and export records as independent (self-owned) brands — as opposed to OEM/ODM manufacturers producing under other companies' names.
Selection criteria included:
- Independent brand status — Manufacturers with their own registered trademarks, factories, and R&D teams, not third-party assembly or white-label operations
- Market presence — Frequency of appearance in industry association listings, trade show participation (e.g., Chinaplas), and export documentation
- Product breadth — Range of tonnage/clamping force covered, indicating genuine production scale rather than a niche single-model operation
- Public reputation signals — Certifications (ISO, CE), years in business as stated in company registration records, and visibility on B2B sourcing platforms (Alibaba, Made-in-China, Global Sources)
Quick Reference: Which Brand for Which Machine Type
Different manufacturers concentrate their R&D on different machine categories. As a starting point:
| Need | Recommended Manufacturers |
|---|---|
| All-electric machines | Haitian (Zhafir brand — Venus, Mercury, Zeres series), YIZUMI (UN series), Sunbun (SE all-electric series), Bole (FE series) |
| Large / ultra-large tonnage (2,000T+) | WELLTEC (up to 4,500T), Chen Hsong (up to 6,500T), LK Group, Haitian, YIZUMI (up to 8,500T on special order) |
| Two-platen machines | LK Group, Bole (DK series), Chen Hsong |
| PET preform machines | Sunbun, Shenda |
| Medical-grade machines | Haitian (Zhafir Mercury/Venus medical variants), Sunbun |
| Servo-hydraulic / energy-saving standard machines | Haitian (Mars series — the world's best-selling servo-hydraulic line), YIZUMI, Tederic, BORCHE |
| High-speed packaging/thin-wall machines | Haitian (Jupiter series), Sunbun, Shenda |
The sections below give more detail on each manufacturer's product lines.
1. Haitian International
Haitian is the largest injection molding machine manufacturer in the world by sales volume. The group operates under two publicly listed entities — Haitian International Holdings and Ningbo Haitian Precision Machinery — along with several affiliated manufacturing businesses covering drive systems and metal components. Haitian's product line spans the full range from small to ultra-large tonnage machines, making it a common choice for buyers needing volume production and broad after-sales network coverage.
Product lines:
- Mars series — servo-hydraulic, energy-saving standard machines; the world's best-selling injection molding machine line with over 300,000 units sold since 2006
- Jupiter series — high-speed, two-platen machines for large and thin-wall parts
- Zhafir brand (electric) — Haitian's dedicated all-electric division, including the Venus (high-precision electric), Mercury (separated injection/plasticizing for complex parts), and Zeres (hybrid servo-electric with integrated servo-hydraulic function) series
- Machines available from small tonnage up to ultra-large (8,000T+ special orders)
2. YIZUMI
YIZUMI is a publicly listed manufacturer known for its injection molding equipment. The company has built a strong position in precision and technically demanding applications, including new energy vehicle components and consumer electronics, and has expanded steadily into overseas markets over the past decade.
Product lines:
- UN series — YIZUMI's all-electric machine line, positioned for high-precision, high-speed applications
- Standard servo-hydraulic machines for general industrial use
- Ultra-large tonnage machines up to 8,500T, developed for large, thick-walled transparent or metal-insert parts
3. LK Group
LK Group is one of the largest machinery groups in China. Within its injection molding business, the group operates through several subsidiaries across Hong Kong, Shenzhen, Zhongshan, Shanghai, and Ningbo, and maintains a sales and service network across more than 20 countries.
Product lines:
- Two-platen large tonnage injection molding machines — a particular strength, including deliveries of 6,000T-class two-platen machines for extra-large, deep-cavity parts
- Standard toggle-clamp injection molding machines across small to large tonnage
4. Tederic
Tederic is a publicly listed manufacturer known for mid-to-high-end injection molding machines. It has developed a strong reputation particularly in the automotive parts, packaging, and appliance sectors, offering both hydraulic and electric machine platforms.
Product lines:
- Servo-hydraulic standard machines across small to large tonnage
- Electric machine platform for precision applications
- Machines tailored for automotive interior/exterior parts, home appliance housings, and packaging
5. Sunbun Machine
Sunbun Machine is the injection molding machine division of Zhejiang Sunbun Intelligent Equipment Co., Ltd., part of the Sunbun Group — a national-level high-tech enterprise with a background in hydraulic components and systems for construction machinery. The company has exported to more than 39 countries and regions and holds multiple technology patents.
Product lines:
- SK series — center-locking structure machines (140T–2800T), offering large clamping force and long opening stroke with material-saving design
- SE series — all-electric machines for high-precision, high-cleanliness applications
- SK-HYB series — hybrid machines combining hydraulic and servo systems for high output with low energy consumption
- Application-specific machines for PET preforms, PVC pipe fittings, large containers/buckets/crates, medical device components (including syringe and eye shield/safety goggle production), and high-speed cable tie manufacturing
6. BORCHE
BORCHE Intelligent Equipment specializes in precision, energy-efficient injection molding machines. After relocating to a modernized production base in Zengcheng, the company invested heavily in automated manufacturing infrastructure, positioning itself around energy savings and precision molding.
Product lines:
- Servo energy-saving standard machines across small to mid-large tonnage
- Precision-focused machines aimed at electronics, daily necessities, and packaging applications
7. WELLTEC
WELLTEC, a core subsidiary of the Hong Kong-listed Tatung Machinery Group, is known industry-wide for its specialization in large and ultra-large tonnage injection molding machines, with clamping forces ranging up to 4,500 tons and shot weights from 43g to 300,000g. The company was the first in China to develop a 2,500-ton clamping force machine and has been recognized multiple times as a top brand in China's plastics machinery sector.
Product lines:
- Full range from standard to ultra-large tonnage (25T–4,500T), with particular depth in the 2,000T+ segment
- Electric machines (HD series), recognized for advances in all-electric drive and precision control
- Machines certified for Level 1 energy efficiency in the super-large tonnage category (2,000T+)
8. Chen Hsong
Chen Hsong is one of the longest-established and largest injection molding machine manufacturers in the world, publicly listed on the Hong Kong Stock Exchange since 1991. The group operates production and R&D bases in Shenzhen, Foshan (Shunde), Ningbo, and Taiwan, with annual output reaching approximately 15,000–20,000 machines and clamping force coverage from 20 to 6,500 tons. Chen Hsong serves customers in around 85 countries and counts major manufacturers among its client base.
Product lines:
- Two-platen machines (MK series) using closed-loop, high-response motion control for large parts
- Full tonnage range from 20T to 6,500T
- Nearly 300 core patented technologies, including early two-platen, electric, and multi-material machine designs
9. Bole Machinery
Bole Machinery focuses on technology-driven injection molding solutions, developed under a "German technology + China manufacturing" model, with clamping forces ranging from 50T to 6,800T.
Product lines:
- EK series — hydraulic center-locking machines, the company's original flagship product line
- DK series — two-platen high-precision machines developed with German engineering input, positioned to compete directly with imported European brands
- FE series — all-electric machines
- CIML series — specialized smart molding lines for carbon fiber composite parts (SMC/BMC/carbon fiber), widely used in automotive lightweighting
- Specialized optical-grade injection molding machines for lens production, an application area historically dominated by imported equipment
10. Shenda Machinery
Shenda Machinery is one of the oldest injection molding machine manufacturers in China, with ISO 9001:2008 and CE certifications. The company produces machines with clamping forces from 900 kN to 40,000 kN and shot weights from 100g to 150,000g.
Product lines:
- Standard series and servo energy-saving series (full electric, servo, frequency-conversion, variable-speed)
- Specialized machine series: high-speed, two-color, extrusion-blow combination, two-platen, PET preform, and mobile-phone-specific machines
- Particular strength in large-capacity/large-shot-weight configurations and mobile device component production
Ready to Find the Right Manufacturing Partner?
Choosing an injection molding machine supplier is a long-term decision — one that affects your production quality, lead times, and after-sales support for years to come. The manufacturers featured in this guide represent some of China's most established independent brands, but the right fit ultimately depends on your specific tonnage requirements, budget, and application.
Not sure where to start, or need help comparing options based on your project specifications? Reach out — we're happy to help you narrow down the right manufacturer for your needs.