Main Market
North America
South America
Western Europe
Eastern Europe
Eastern Asia
Southeast Asia
Middle East
Africa
Oceania
Worldwide
Professional Manufacturer of Various Kinds of Blower
Keep improving----- our forever seeking
Satisfy customers-----our invariable promise
B-Tohin Machine(Jiangsu)Co;Ltd.,a joint venture,was established in 1994 and located in Yixing Environmental Protection Science and Technology Industrial Park,National High Tech Development Zone,China.It is mainly engaged in the production and sales of 3-robe roots blowers,rotary blowers,screw blowers,air suspension centrifugal blower,magnetic centrifugal blower,gear speed single-stage high-speed centrifugal blower,multi-stage centrifugal blower,fiberglass blowers,stainless steel blowers,vacuum pumps,water pumps and other products.The products are widely used in environmental protection water treatment,building materials cement,chemical industry,electric power petroleum,steel,metallurgy,mining,printing and dyeing, grain transportation ,new energy and new materials and other industries.The products are sold all over the country,and exported to many countries and regions.At present,the company has established an annual production and sales scale of over 30000 units(sets) of various type of blowers and pumps.
The company has successfully passed the certification of ISO9001 quality management system certification,ISO 14001 environmental management system certification,ISO 45001 occupation health and safety management system certification and ISO50001 energy management system certification.The company also has been certified as “High &New-tech Enterprises of Jiangsu Province” for many years.B-Tohin Tech R&D Center has a team of professor level senior engineers,doctoral and master’s students ,and a group of undergraduate students for scientific and technological innovation.It has established the“Jiangsu Province Energy saving Aerodynamic Equipment Engineering Technology Research Center ”and “Air Suspension Bearing Research and production Center” .At the same time,it has also obtained the national standard GB/T2.79.22-2011“Product After sales Service Evaluation System”five-star certification,“JiangSu Province Specialized,Refine,Unique and New Small and Medium sized Enterprises”,Mayor’s Quality Management Excellence Award”,“Carbon Management System Certificate”,“AA level Integration Management System Evaluation Certificate”,and“Enterprise in Compliance with Environmental Protection Equipment Manufacturing Industry Standard.”
As a member unit of the National Blower Standardization Technical Committee,participating in the formulation and revision of multiple wind turbine industry standards,and serving as the main drafting unit. The main products have also passed CE certification for export to the European Union,as well as multiple international certifications such as GOST and BV.
WORKSHOPS
The workshop is the core site of the company's production operations and the key link where raw materials are transformed into finished products. Below is a brief introduction to the workshop's basic situation:
MAIN FUCTIONS
Production Assembly: Assemble and fit various components of products in accordance with process requirements.
Quality Inspection: Conduct quality control at every production stage to ensure products meet required standards.
Equipment Operation and Maintenance: Operate all types of workshop equipment and perform routine maintenance.
Material Management: Manage the requisition, storage, and recording of production materials.
MANAGEMENT REQUIREMENTS
Safety Production: Strictly comply with safety operating procedures and prohibit any rule-violating operations.
Quality Awareness: Uphold the principle of "Quality First" — do not accept, do not produce, and do not pass on defective products.
6S Management: Maintain a clean and orderly workshop by implementing Sort, Set in Order, Shine, Standardize, Sustain, and Safety.
On-Time Delivery: Complete tasks according to the production plan to ensure timely delivery.
BELOW ARE OUR WORKSHOPES
1, WORKSHOP NAME:FULLY ENCLOSED CNC MACHINE AND ROBOTIC ARMS WORKSHOP
FUNCTION: The equipment shown in the picture is primarily used for machining core mechanical components such as Roots blowers and rotary blowers.Cylinder blocks and end covers for the BK series three-lobe Roots blowers and main components for the HC-S series low-noise rotary blowers.
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2, WORKSHOP NAME:MACHINEING CENTER
FUNCTION: This type of equipment primarily uses computer programs to control cutting tools moving along multiple axes, layer by layer removing excess metal from the raw workpiece (blank) to achieve the final dimensions and precision requirements.
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3,WORKSHOP NAME: 5-AXIS VERTICAL MACHINING CENTER
FUNCTION: Five-axis simultaneous machining, one‑setup completion: This is its most core advantage. Through the simultaneous coordinated motion of five axes (the three linear axes X/Y/Z plus two rotary axes), it can complete multiple operations such as turning, milling, and drilling on an impeller in a single clamping. This eliminates positioning errors caused by multiple setups, which is the fundamental basis for ensuring high precision in impeller machining.
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4, WORKSHOP NAME:A TESTING WORKSHOP
FUNCTION: A dedicated area where products are inspected for functionality, performance, and durability to ensure they meet quality standards before leaving the factory.
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5,WORKSHOP NAME:AIR BEARING INSTALLING WORKSHOP
FUNCTION: Various types of high-efficiency centrifugal blowers are installed utilizing air bearing technology.
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6, WORKSHOP NAME:HC BLOWER INSTALLATION WORKSHOP
FUNCTION: HC blower installation workshop is to carry out professional assembly, positioning, connection, and commissioning of HC rotary blowers in accordance with standard procedures, ensuring safe, stable, and efficient operation after they are put into use.
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7,WORKSHOP NAME:BK BLOWER INSTALLATION WORKSHOP
FUNCTION:The primary function of the BK blower installation workshop is to perform specialized assembly, positioning, connection, and commissioning of BK series blowers in strict compliance with established procedures, thereby guaranteeing their safe, stable, and high-performance operation once placed into service.
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8,WORKSHOP NAME: PACKAGING WORKSHOP
FUNCTION: The packaging workshop performs final finishing, protection, and packing of completed products, with the following key operations: product encapsulation, labeling and coding, protective reinforcement, as well as boxing and palletizing.
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9,WORKSHOP NAME: MAIN BODIES INSTALLATION WORKSHOP
FUNCTION: The main bodies of core power equipment such as blowers and motors are accurately installed and secured in place in accordance with specifications, laying a solid foundation for subsequent piping connection and commissioning.
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10,WORKSHOP NAME: WAREHOUSE
FUNCTION: The main function of the warehouse is to receive, store, preserve, and issue materials and finished products.
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PRODUCT PATENTS
Independently developed and patent-protected.
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EXHIBITION
Every exhibition is a face-to-face, honest conversation; every appearance is a public test of our own capabilities. Our booth may be modest, but our sincerity is anything but. We're not just showcasing products — we're looking for like-minded partners.
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CUSTOMERS & US
Mexican clients visit our manufacturing facility. Brazilian clients visit our manufacturing facility.
Russian clients visit our manufacturing facility. Customers visit our exhibition.
B/L
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Customer Project----The Ecuador Sewage
The stable and low-noise performance of the B-Tohin fan has earned high praise from property owners.
Recently, the complete set of B-TOHIN three-lobe Roots blowers was successfully put into operation in a mountainous wastewater treatment project in Ecuador. Located in a tropical rainforest, the equipment requires uninterrupted aeration for sedimentation tanks throughout the year.
By optimizing the three-lobed rotor structure and adopting a dual-layer noise reduction design, the unit delivers stable air pressure and minimal vibration under full-load operation, with outstanding noise performance, perfectly adapting to the local high-temperature and high-humidity complex environment. After multiple rounds of on-site testing by foreign engineers, all operational data met standards. Its stable and low-noise advantages effectively resolved the past issues of high equipment failure rates and noise disturbances, earning high recognition from the project stakeholders.
The successful implementation of this project marks another landmark case for B-TOHIN's domestic fan exports to Latin America, showcasing the robust technical capabilities of Made-in-China in the field of environmental aeration equipment.
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Main Market
North America
South America
Western Europe
Eastern Europe
Eastern Asia
Southeast Asia
Middle East
Africa
Oceania
Worldwide
Business Type
Manufacturer
Distributor/Wholesaler
Agent
Importer
Exporter
Trading Company
Seller
Brands : BK
No. of Employees : 280~320
Annual Sales : 38000000-40000000
Year Established : 1994
Export p.c : 20% - 30%
Company Spirit:: Credit cooperation benifit
Company Idea: Diligenty sincerity confidence
Product Application: Water Treatment, building materials cement,chemical industry, electric power,petoleum, steel,metallurgy,mining,printing and dyeing, grain transportation , new energy ,new materials and other industries.
Main Products: Three lobes roots blower,rotary blower, screw blower, air suspension centrifugal blower, magnetic centrifugal blower, single-stage centrifugal blower, multi-stage centrifugal blower,stainless steel blower,vacuum pumps, water pumps and other products.
Main Certifications: ISO9001,ISO45001,ISO14001,ISO50001,CE
Company History
| 1994-1995 | Development History |
| Mar-95 | The first set of B-Tohin assembled HC blower and roots blower were completed and delivered to customer. |
| Dec-94 | Sino-Japanese invested Company "Yixing Pengde Co., Ltd." established |
| 1996-2000 | |
| Sep-00 | started mass production of BK three-lobe roots blower after the first set developing product was completed and passed the quality test of TUTHILL Corp. in American. |
| Dec-99 | Invested a joint venture "Tuthill and Tohin Machine Co., Ltd." with TUTHILL CORPORATION/PNEUMATICS GROUP |
| Nov-99 | Finished development of BG series stain-less screen and began mass production |
| Aug-97 | started to make HC bases and belt covers for Tohin Co. in Japan |
| Apr-97 | The first set of localized HC blower came out. |
| Jan-97 | TOHIN INDUSTRY CO., LTD became a new investor by putting 30 million yen in and the total registered capital was 130 million yen. |
| Aug-96 | started manufacturing of BG stain-less screen |
| Jun-96 | Pengyao Co. transferred its share to Japanese companies, and "Yixing Pengde Co., Ltd." became "B-Tohin Machine (Jiangsu) Co., Ltd." |
| Jan-96 | The registered capital was increase to 100 million yen |
| 2001-2004 | |
| 04-Jul | New workshops and office building |
| 04-Mar | Co-operated with TUTHILL GROUP for development of high-pressure and double-stage blower and succeeded |
| 04-Jan | Invested RMB 500 thousand yuan to Jiangxi Yiang Qinghu B-Tohin Middle School |
| 03-Dec | Increased by 50 million yen and made Registered capital be 180 million yen and total investment be 250 million yen |
| 03-Sep | Passed the certification of "High-tech Enterprise of Jiangsu Province" again |
| 02-Dec | passed the certification of ISO9001:2000 |
| 02-Sep | BK blower ranked “High-tech Products of Jiangsu Province” |
| 01-Oct | Passed the certification of "High-tech Enterprise of Jiangsu Province" |
| 01-Jul | HC blower ranked “High-tech Products of Jiangsu Province” |
| 2005-2009 | |
| 9-Oct | started to use New-constructed workshop and warehouse |
| 8-Oct | Passed the certification of "High-tech Enterprise of Jiangsu Province" again |
| 8-Sep | BZ blower won 2008 Forth China International Fluid Machinery Exhibition Golden Prize. |
| 8-Jun | Monthly sales surpassed RMB 20 million yuan. |
| 7-Dec | Co-operated with Jiangsu Yiyou Machinery Co. for production and sales of various pumps and mixers |
| 7-Nov | Total investment reached 450 million yen after Japanese Board of Directors increased registered capital by 150 million yen. |
| 6-Dec | |
| 6-Nov | BZ blower won 2008 Forth China International Fluid Machinery Exhibition Golden Prize. |
| 6-Oct | started the sales of new-developed BK-DS blower both at home and abroad (first set exported to Belgium) |
| 2010-2012 | |
| 12-Nov | Passed the CE certification |
| 12-Jul | Named as Favorite Brand of Users in Water Treatment Industry www.h2o-china.com |
| 12-Jun | Attended Shanghai International AQUATECH China Exhibition |
| 11-Oct | Office Automation Soft successfully used in whole company |
| 11-Sep | 5S Management adopted and sound eft achieved |
| 11-Feb | BK blower ranked “High-tech Products of Jiangsu Province” |
| 10-Oct | granted with the certificate of “ISO 14001 Environmental Management System” by China Quality Certification Center |
| 10-Aug | approved by Jiangsu Science & Technology Bureau as “Pneumatic Technology Research Center of Jiangsu Province” |
| 10-Jun | single-stage high-speed centrifugal blowers tested successfully and related sales started |
| 10-Jun | awarded “Satisfied Brand for Water Specialists” by China H2O net (www.h2o-china.com) and Environment & Engineering of Dept. of Tsinghua University |
| 10-Feb | started sales of multi-stage centrifugal blowers |
| 2013 | |
| 13-Sep | Total investment reached RMB 160 million yuan after registered capital increased to 80 million yuan. |
| 13-Jul | Named as Favorite Brand of Users in Water Treatment Industry www.h2o-china.com |
| 13-Apr | Total investment reached RMB 100 million yuan after registered capital increased to 50 million yuan. |
| 2014-2015 | |
| 14-Apr | Jiangsu B-Tohin Energy-saving Co., Ltd. was established. |
| 14-Apr | Development of new MVR steam compressor succeeded. |
| 14-Jun | Nominated as High-tech Enterprise of Jiangsu Province again. |
| 14-Aug | Introduced ATB air bearing blower from Korea |
| 14-Nov | “B-Tohin” was certified as the “Top 10 Brand of China Water Industry” by http://www.hc360.com/. |
| 14-Dec | Improved the precision of inspection instruments of blower’s gear, bearing and oil seal which insured the parts’ quality |
| 15-Jan | Sales Value of Roots blower ranked second in China by China General Machinery Industry Association fluid machine branch’ statistics |
| 15-Mar | Co-operated with the Blower Test Laboratory of Shengyang Blower Research Institute (Blower Quality Supervision Testing Center of China General Machinery Industry Association), introduced the whole set of blower performance test system and got verification certificate |
| 15-May | Bought new factory of 26000M2 in Yixing Economic Development Zone |
| 15-Jul | Awarded “Most Valuable Environmental Protection Equipment of China in 2014-2015” |
| 15-Dec | Wuxi B-Tohin Blower Technology Co., Ltd. was established in Yixing Economic Development Zone. |
| 2016 | In 2016, Sino-Korean joint venture Wuxi B-Tohin & Ace Blower Science and Technology Co.,Ltd. was established. In the same year,air foil centrifugal blower was successfully introduced,and Tohin Vietnam Industry was founded. |
| 2017 |
In 2017,the company turned on the Internet of things intelligent ,the balance tester of Air Bearing Turbo Centrifugal blower was successfully put into use .The Science and Technology Association of B-Tohin was founded. |
| 2018 | In 2018, B-Tohin magnetic suspension centrifugal blower,stainless steel blower and other new products were successfully launched. |
| 2019 |
In2019,Adopted the ERP platform management in the whole company and passed the assessment of “Informational and Industrialize Integration” in 2019. |
| 2021 | B-Tohin screw blower was put on market successfully in 2021. |
| 2022 | Launched contract energy management and new type product lease sales in 2022.With a new area of 75000 square meters acquired, the project of design and intelligent manufacturing base of high efficiency blower and office building of B-Tohin started. |
| 2023 |
The new factory building was successfully completed and relocated. |
| 2024 | B-Tohin has adopted 6S management practices at its new facility to enhance workplace efficiency and quality standards. A Japanese-origin 5-axis machining center has officially been introduced into B-Tohin Corporation. |
| 2025 | Our domestically made air-foil and magnetic bearing centrifugal blowers have received official test reports from a national testing center, confirming their energy efficiency. This authoritative recognition strengthens our market competitiveness and will boost production and sales. |
Company Service
Sales Service
1. Provide customers with drawings of equipment, piping and foundation required by customers' site design;
2. Answers questions about specifications, performance, parameters, etc, and recommend the most appropriate solution, the most cost-effective products to customers;
3. Immediately after signing the contract, we make production planning for timely delivery.
After-sales Service
1. Provide technical advice during installation process;
2. When the equipment is ready for commissioning, as per request, we can offer free commissioning service for blower package. The service is only available for sites located in China, and the commissioning usually takes two days. If your site is located outside of China, the service will be subject to further discussion;
3. Build detailed user profiles and send regular letters to offer guides for maintenance and repair;
4. In warranty period, if a quality-related problem occurs in normal use, please send a written description of the problem to us. We will respond within 24-48 hours.
5. Even if the warranty has expired, we are still glad to solve problems that are not due to improper use for you. All repairs will be billed at cost, and for long term, we supply spare parts at favorable price.
Five Star After-sales Service Certification
FAQ
1. What products do you have?
Our main products include roots blower, rotary blower, centrifugal fan, side channel blower, submersible sewage pump, centrifugal pump, submersible mixer and other water treatment equipment.
2. What is the purpose of your products?
Our products are widely used in environmental protection, electricity, water, chemicals, building materials and other industries.
Air blowers can be used for:
a. aeration and backwash in sewage treatment plant;
b. desulfurization and ash removal in power plant;
c. pneumatic conveying and pipeline cleaning in cement plant and food industry; d. aquaculture oxygen supply .
Water pumps can be used for:
a. drainage of sewage with solids, waste water, rain water and urban water supply;
b. garden irrigation;
c. fire fighting pressure boosting; d. long-distance carriage of water.
Submersible mixers can be used for:
a. treating municipal sewage and industrial waste water;
b. mixing and densification of sludge water.
3. What is your advantage over other suppliers?
Our company was started in 1994 and has nearly 20 years of production and sales experience. We have advanced production and testing equipment, strict quality control process, and dedicated R & D department. Our products are well-received at home and abroad.
Quality, price, workmanship, and service are prior concerns of customers. In the above aspects, we all show our unparalleled strength. Please read more about us on our website.
4. How shall I choose the right model?
Here we list the factors that should be taken into consideration when you determine the models and quantities:
a. fan selection: working environment,gas composition, pressure, air capacity.
b. pump selection: working environment, media, head, flow.
c. mixer selection: working environment,tank shape, tank depth, water depth.
5. Can you offer some customer cases for our reference?
Please refer to the corporate information-Sales Records.
6. Can I get a good price?
Our products are reasonably priced to be cost-effective. Please send your inquiry to sales@bk.com.cn, or call +86-510-87072125, and we will reply to your request within 24 hours.
7. How shall I pay?
T / T and L / C payments are workable for us.
8. How long does the delivery take from you?
Delivery date depends on the model, specification and quantity required. When we make a quotation, we will separately state the delivery date. If you want an earlier delivery, we will try to make shift.
9. Will you keep me updated about how is the production going?
Yes, of course. After your ordering, we will send timely report on the progress to you.
10. How will the goods be packed?
Our products are generally packed in wooden cases. The wooden materials have been fumigated to meet the requirements of ISPM15.
11. How long is the warranty?
The warranty starts from the date of BL (AWB) and lasts for 12 months.
12. How can I get the right spare parts for your products?
Every piece of our product has a serial number, and the serial number is equivalent to an identity of the machine. To get spare parts, please contact us and told us the serial number, we will provide you with the appropriate equipment parts in accordance with the terms of warranty.
13. Do you provide on-site installation and commissioning services?
We can provide on-site installation and commissioning services according to your requirements. Details and pricing of the services will be subject to the specially signed foreign technical service contract.
14. Do you provide operator training services?
We can provide operator trainings based on your requirements. The training will be given in line with the specially signed training agreement.
15. If the product fails, how should we do?
When failure occurs, please send a description of the failure in words and pictures to us. We will respond within 24 hours after receipt of your notice, and give solution proposals within 48 hours.
16. What are the application fields of our products?
Environmental water treatment, building,materials and cement, chemical industry ,electric power, petroleum ,steel , metallurgy,mining, printing and dyeing,grain transportation,new energy, new material,and other industries.
17.What are the advantages of our products?
Low noise, energy saving, smooth operation , easy installation, superior material, ingenious structure, reliable performace,low vibration etc.
Company Team
1 B-Tohin Organization chart
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2 Departments of Company
1 ) Administrative Department
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Administrative departments are mainly responsible for personnel use, daily affairs management and
attendance.
2 ) Finance Department
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The finance department is mainly responsible for financial settlement and other related matters.
3 ) Technical Department
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The technical department is mainly responsible for the daily technical problems, the development of new
products and new patented inventions.
4 ) Product Department
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The production department is responsible for the continuity of production to support the normal operation of the
sales department and the important guarantee for the development of the city company.
5 ) Sales Department
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The sales department sells the company's products to all parts of the world, making BK famous at home and
abroad.
3 Culture of Company
The annual party building activities
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The annual celebration
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The travel of company
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Other activities
Running
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Badminton game
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Basketball march
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2018 Yixing international marathon
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