Cqstart engaged in manufacturing spring starter in 2008, developing hundreds of applications for engines. 3D-installation: Cqstart spring starter is fitted to the engine

In 2020, Cqstart moved to a new plant (Chongqing Shapingba International Enterprise Port) New production line of the 5th generation spring starter has been put into operation

Distributed energy storage
Special storage materials
Parallel releasing tech
Cqstart set the World Record of mechanical spring starting (50 liters/1500KW)

Cqstart black start solution for diesels: Cqstart spring starter + M-Gen unit
Adapted to battery-free environments,
enable the electronically regulated/controlled engine to achieve black start

Cqstart has adhered to CCSC quality system certification (GB/T19001-2016/SO 9001:2015)
Unique digital test bench for spring starting (SKQDJ A/B),
realizing digital monitoring and assessment of instantaneous working parameters

China Mechanical Spring Starter Manufacturer

Cqstart is a professional mechanical spring starter manufacturer in China, specializing in mechanical spring starters and engine starting solutions for a wide range of diesel engine applications. With nearly 20 years of manufacturing experience, we provide reliable manual starting solutions for engines ranging from under 2L to large displacements up to 50L.

Our fully mechanical spring starters operate without batteries, electrical power, or compressed air. We help customers select suitable starting systems based on engine specifications, installation requirements, and operating conditions. Whether for marine, industrial, power generation, or emergency applications, Cqstart delivers dependable starting solutions backed by manufacturing expertise and strict quality control.

Our Mechanical Starter Series

Cqstart provides mechanical spring starter products and application-specific starting solutions for different diesel engine configurations.
Explore our main product and solution categories to identify the right direction for your application.

About Cqstart Spring Starter

Manufacturing mechanical spring starters since 2008, Cqstart develops starting solutions for a wide range of diesel engine applications.

Our expertise includes large-displacement spring starting systems, black start solutions, and digital performance testing.

Cqstart Black Start Solution for Diesels

Adapted to battery-free environments, manual starting capability for diesels up to 50 liters displacement

  • Cqstart Mechanical Spring Starter: provides energy for diesels turning. Pure mechanics, store manpower energy and one-time release, drive the engine flywheel to reach the starting speed.
  • Cqstart M-GEN unit: adapted to extreme battery-free environments, it only requires manpower to start. The engines with electronic control unit (often called ECU) can realize the real “black start” while the user is using spring starter.

Where Our Mechanical Starters are Used?

Military

Make the engine start smoothly under military field conditions, mostly used in cross-country vehicles and military mobile power stations.

Marine

Maritime transportation: the ocean ship can meet the requirements of a marine emergency generator set when power is lost.
Lifeboat: starting plan in case of emergency to ensure that the boat engine is foolproof.

Pump

In the case of a fire accident and power failure, ensure that the fire unit can be reliably started to ensure the safety of life and property.

Emergency

Emergency rescue: emergency units often lack battery maintenance. A spring starter can ensure the emergency units will be successfully started when lacking backup power.

ATEX

The fields that require ATEX, such as oilfields, mines, chemical plants, etc.

Cqstart Spring Starting System

World Record of spring starter, MAX to 50L displacement
In response to the demand for emergency starting of large displacement units in emergency places, Cqstart has been researching, developing and innovating the spring starter for many years, through the “distributed energy storage”, “parallel release”, “special energy storage materials” and other new technologies, finally designed spring starting group system for large engine emergency starting.

SKQDJ-A Spring Starter Starting Test Bench

All products pass the GED/TS20-5 test on the SKQDJ-A Spring Starter Starting Test Bench.

Digital Spring Starter Simulation Test Bench

All data of spring starter will be evaluated quantitatively, which is the basis for ensuring product quality.

GED/TS20-5 test data

All spring starters have detailed test data records (torque, peak, speed, input/output ratio, conversion rate, stability ratio, etc) can be traced.

Advantages

Super Powers

  • World record of spring starting power(50L displacement), increasing the adaptive displacement by more than 3 times.
  • Superior materials, compared to international products, Cqstart’s energy density increased by more than 20%.
  • Ultra-precision parts, improve the overall transmission efficiency by more than 9%.

Extra-long Life

  • The energy attenuation is only 8% after 5000 times durability test, international top level.
  • Special surface protecting materials reduces the friction of parts by 40%.
  • Special anti-bite agent, preventing heating and bonding of parts, suitable for extreme low/high temperature environment.

Digital Test

  • Unique digital test bench for spring starting system, realizing digital monitoring and assessment of instantaneous working parameters.
  • Ensuring that torque, work, and energy conversion rates for each unit are in the optimal range and all data are traceable.
  • Quantitatively monitoring the operation of key parts to ensure capability and lifetime.

Company Qualification

  • Since its establishment in 2008, Cqstart has adhered to CCS quality system certification and has been tested in the market for more than 18 years.
  • Cqstart has been a superior supplier of diesel engines for many years, developing hundreds of applications for engines.
  • Cqstart won the high-tech enterprise for many years, has a number of international/domestic invention patents.