Hengyou is a professional rotary hammer and demolition hammer manufacturer with over 30 years of outstanding production experience. Every year we produce more than 1.5 million units. Hengyou owns two brands, "Hengyou" and "PTG". We also provide OEM services according to customer requirements. We have established a professional technical team, manufacturing team, QA team, and after service and support team. Hengyou is a one-stop-shop solutions provider for your rotary hammer and demolition hammer needs.

Hengyou’s R&D department features a complete organizational structure, constisting of a product section, mold section, manufacturing technology section, production engineering section, motor section, and technology management section. R&D department has 20 experienced staff members. The R&D department is equipped with complete and advanced designing software and developing tools and testing devices. For the past few years, our R&D department has successfully developed 8 new products per year on average, including HENGYOU red-circle series premium rotary hammers and demolition hammers (HPP level), which have been well received among professional customers.

Hengyou’s manufacturing facility consists of 6 workshops (i.e. metalworking workshop, heat treatment workshop, painting workshop, injection workshop, motor workshop and assembly workshop). Essential parts of our products are produced in-house, to ensure quality. We constantly update our workshops, technology and equipment, to grant our products better performance and quality. Today, we have over 500 precise devices, along with senior professional technicians to operate, in order for better production quality in every procedure.

Hengyou performs strict QA procedures to ensure quality, including incoming quality control, process quality control, routine quality inspection, and outgoing quality control. Our rotary hammers and demolition hammers are certificated by authorized groups, including GS, CE, EMC, 3C, ETL, etc. The main procedures of our quality control contains 6 parts, which are strictly performed, to ensure quality.

Part 1: Material Incoming Quality Assurance
All essential parts of our products are produced in-house. We have inspection personnel to inspect incoming material from providers in every workshop. Besides, we do strict incoming quality control according to parts blueprints and specifications, to ensure quality from the source.

Part 2: Components Quality Assurance
Our workshops are considered equal to component providers, all parts from workshops are performed with incoming quality control procedure: check every item on inspection card according to component blueprint and related requirements.

Part 3: First Sample Inspection & On-Site Inspection
We re-inspect equipment according to production procedures and the production guidebook, to ensure component quality and production normalization.

Part 4: Finished Product Quality Inspection
Our special finished product quality inspection devices include anti-interference EMC, rotation testing system, temperature and humidity chamber, engine dynamometer, vibration meter, noise level meter, safety clutch testing system, etc., totally over 500 devices, which would satisfy inspections on finished product safety, functions, appearance, etc. QA department lab is certified with TUV Rheinland TMP Witness Testing Data Program certification. GS, UL certification tests can be performed in our facility, test results admitted.

Part 5: Random Inspection
The QA department will randomly inspect the products at a certain rate, generally check the product’s appearance, safety, performance, durability, etc., to ensure it reaches the standards.

Part 6: Customer Examine (Optional)
Customers can send inspection personnel or authorize a third party company to our company for quality inspection, to see if the products reach the standards.