Hydraulic Toggle Injection Molding Machines

Servo-hydraulic toggle machines from 88 to 2,800 tonnes for automotive, packaging, electronics, medical, and general-purpose production.

Choose a hydraulic toggle machine for the widest range of injection molding processes, the broadest mold and material flexibility, and the best value per tonne of clamping force. 

Hydraulic Toggle Injection Molding Machines Built for Reliable, Energy-Efficient Production

A hydraulic toggle injection molding machine uses a mechanical toggle linkage, driven by a hydraulic cylinder, to open and close the mold. The toggle multiplies hydraulic force mechanically, so once the mold is locked, clamping pressure is held with minimal hydraulic input. The result is fast cycle times, high structural stability, and low energy consumption through the holding phase. Hydraulic toggle sits alongside Chen Hsong’s full injection molding machine range of two-platen, all-electric, hybrid, vertical, and high-speed packaging machines.

Chen Hsong is one of the world’s largest injection molding machine manufacturers, with over 1,000,000 machines installed across 85+ countries since 1958. Every hydraulic toggle machine is built on vertically integrated manufacturing, from ductile iron castings and precision machining to in-house control systems and final assembly, governed by ISO-certified quality systems.

Patented Precision Hydraulics™ delivers ±0.05% repeatability across all critical axes, and the MK6.6 platform alone carries a 98% customer repeat-order rate. The lineup spans the MK6 Standard base workhorse, the MK6.6 platform with its regional variants, the MK6 PRO precision flagship, the MK7max stability platform, the MK7S smart and energy flagship with standard e-Drive™, and the MK6 Large Series for heavy industrial production up to 2,800 tonnes.

20,000/yr
Machines Produced
200+
Patented Technologies
120+
Service Locations
iChen™
Smart Factory Platform

Connected, intelligent production

Every Chen Hsong machine is ready for smart manufacturing through the iChen™ platform. iChen™ Smart Factory connects machines, automation, and production systems into a complete MES solution. iChen™ Cloud provides real-time monitoring, quality tracking, and data-driven operations across your entire fleet. iChen™ AI Molder applies AI-driven process intelligence to optimize molding parameters, reduce defects, and stabilize output, without relying on operator experience alone.

As a global injection molding machine supplier with 120+ service locations, Chen Hsong supports manufacturers in automotive, packaging, electronics, medical, home appliance, and industrial production with machines, automation, and smart factory solutions.

Our Machine Portfolio

MK6.6 SI+

Built for All Seasons. Production Proven.

The MK6.6/SI+ Série International delivers production-proven precision with patented high-strength platens (0.156mm deformation), Intelligent Auto Clamp Adjustment (±5%), and 3.4x higher CPK than competition. 12 models from 88 to 1000 tonnes.
88 -
1000T
Hydraulic Toggle
Servo Hydraulic
MK7S

Smart Efficiency. Built In.

Latest-generation toggle with e-Drive™ electric plasticising standard on every model. 10–25% lower plasticising energy, faster cycles, and a 15″ AI-assisted smart controller. The widest tonnage range in the lineup.
88 -
1850T
Hydraulic Toggle
Servo Hydraulic
MK6 PRO

In Pursuit of 100% Complete Satisfaction.

The injection precision flagship. Closed-loop control holds injection accuracy to ±0.15% for 31% higher CPK than comparable machines. 26% larger power pack, 18% higher shot weight. Optional e-Drive™.
88 -
668T
Hydraulic Toggle
Servo Hydraulic
MK7max

The Stability Upgrade.

Premium servo toggle with proportional valve mold control and dual-loop thermal stability. Weight repeatability below 3‰, opening accuracy within ±0.2mm. 12 models including JM288 and JM358 sizes.
88 -
668T
Hydraulic Toggle
Servo Hydraulic
MK6.6

The All-Rounder - Speed and Stability

13% faster dry cycle, patented high-strength platens, Japanese-engineered toggle. Multiple regional variants available: Euroseries, Brilliance, Artisan, and Superior India.
88 -
658T
Hydraulic Toggle
Servo Hydraulic
MK6 Standard

The Proven Global Workhorse.

Sixth-generation servo-hydraulic toggle, the most widely deployed Chen Hsong machine worldwide. Up to 80% energy saving, Precision Hydraulics™ with ±0.05% repeatability. Region-specific configurations available.
88 -
668T
Hydraulic Toggle
Servo Hydraulic
MK6 Large Series

Proven MK6 Technology. Scaled for Heavy Industry.

Large-frame hydraulic toggle for automotive panels, bumpers, and industrial housings. The same proven MK6 servo-hydraulic technology, scaled up to 2,800 tonnes. Up to 50% energy saving, one-touch auto mold adjustment.
650 -
2800T
Hydraulic Toggle
Servo Hydraulic

Global Customers

FAQ

01Which hydraulic toggle series should I choose?

Selection depends on clamping force, mold size and weight, material, shot weight, cycle time, and output target, but each platform is positioned for a clear priority.

The MK6 PRO is the injection precision flagship (±0.15% closed-loop accuracy, 31% higher CPK). The MK7max is the stability platform with measurable mold-motion specs (<3‰ weight repeatability, ±0.2mm opening).

The MK7S is the smart and energy flagship with standard e-Drive™ electric plasticising, a 15″ AI-assisted controller, and the broadest tonnage range up to 1,850T. The MK6.6 platform delivers proven workhorse performance with patented high-strength platens, with the MK6.6/SI+ configured for international export.

The MK6 Standard is the most widely deployed base workhorse. The MK6 Large Series scales to 650–2,800T for automotive panels, bumpers, and large industrial housings. Chen Hsong evaluates your application and recommends the right platform based on real production requirements. 

A toggle machine uses three platens and a mechanical toggle linkage to generate clamping force, holding pressure with minimal hydraulic input once locked. A two-platen machine uses only two platens with hydraulic cylinders acting directly on the tie bars.

The practical trade-off: toggle machines offer fast cycles, high structural stability, and the best value per tonne for general-purpose production at smaller-to-mid tonnages, while two-platen machines deliver the same clamping force in a shorter overall length and become the better choice above roughly 500 tonnes, particularly for large molds or where floor space is constrained. For most production from 88 to 2,800 tonnes, hydraulic toggle is the standard choice. 

Servo-hydraulic drive cuts energy consumption by up to 80% compared to older fixed-pump hydraulic machines, because the servo motor only consumes power when the machine is actively moving.

During the holding phase, when the toggle is locked, energy use drops to near zero. On machines equipped with e-Drive™ electric plasticising (standard on MK7S, optional on selected MK6 platforms), plasticising energy consumption is reduced by a further 10–25%. 

All Chen Hsong hydraulic toggle machines support the iChen™ ecosystem: iChen™ Smart Factory for MES and automation integration, iChen™ Cloud for real-time production monitoring and data analytics, and iChen™ AI Molder for AI-driven process optimization.

Standard IoT connectivity and OPC UA support are available across the range, with the MK7S adding a 15″ AI-assisted smart controller. 

Chen Hsong supports customers through 120+ service locations worldwide. Standard coverage includes installation, commissioning, operator training, preventive maintenance, spare parts supply, and remote diagnostics through the iChen™ platform. Service contracts and extended warranty options are available.

For customers in China, the 24-hour “服务易” hotline (400-930-0026) provides round-the-clock response, with five production bases (Shenzhen, Foshan Shunde, Ningbo Zhejiang, Lufeng Shanwei, and Taoyuan Taiwan) providing nearby support: 3 hours in-city, 8 hours in-province, 24 hours out-of-province. 

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Why Manufacturers Choose Chen Hsong

Founded in 1958 Icon

Founded 1958

Over six decades of injection molding expertise
85+ Countries Icon

85+ Countries

Machines operating across major industrial markets worldwide
900,000 m2 Icon

900,000 m2

Five R&D and production facilities with full vertical integration
1,000,000+ Machines Icon

1,000,000+

Injection molding machines delivered and in operation
200+ Patents Icon

200+ Patents

Patented technologies plus 20+ software IP
Up To 80 Icon

Up to 80%

Energy savings with servo-hydraulic technology
Euromap Icon

EUROMAP & SPI

Region-specific machine configurations for global mold standards
120+ Locations Icon

120+ Locations

Global installation, training, maintenance, and technical support