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SBKJ – Precision
Duct Forming Machines

Leading manufacturer of Spiral Tubeformers, Round & Square Ducting Machines for HVAC, Ventilation, and Industrial Applications.

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About SBKJ

SBKJ is a national high-tech enterprise based in the Yangtze River Delta, near Shanghai, China. We specialize in the development and manufacturing of advanced tube forming machines, plasma cutting machines, and automated systems for the production of round and square ducting and fittings in sheet metal.

Our equipment serves the climate control, ventilation, and industrial air distribution industries. With ISO9001:2000 and CE certifications, our products are trusted by customers in over 60 countries worldwide.

60+
Countries Served
20+
Years Experience
ISO & CE
Certified
Humanity-Oriented
Technology-Oriented
Integrity-Oriented
SBKJ Factory

Our Products

High-performance duct forming machines designed for precision, durability, and efficiency in HVAC and industrial ventilation systems.

Spiral Tubeformer SBTF-1602

Spiral Tubeformer SBTF-1602

Modular design allows customization for various production needs in spiral duct manufacturing.

Diameter: ￠125–1250mm
Strip Thickness: 0.4–1.2mm
Motor Power: As per configuration
Gorelocker SBEM-1250

Gorelocker SBEM-1250

High-speed seaming machine for spiral ducts with precision locking mechanism.

Diameter: ￠125–1250mm
Material: Black & Galvanized Steel
Thickness: 0.4–1.2mm
Fitting Shaper

Fitting Shaper

Ideal for shaping HVAC fittings with high accuracy and repeatability.

Diameter Range: 80–400mm
Material Thickness: 0.4–0.9mm
Power: 4.5kW
Weight: 1500kg
Angle Iron Punching Machine

Angle Iron Punching Machine

Material-saving design for punching L3–L5 angle iron with high efficiency.

Working Range: L3*3*3 ~ L5*5*5
Max Punching Holes: 26
Model: SBCK-50A
Gorelocker SBWT Series

Gorelocker SBWT Series

Frequency-controlled male/female seaming machines for consistent spiral lock seams.

Models: SBWT-1000, SBWT-1500
Control: Frequency (Male/Female)
Aluminum Flexible Duct Machine

Aluminum Flexible Duct Machine SBLR-200A

Produces flexible aluminum ducts with precision and durability.

Diameter: ￠80–200mm
Strip Width: 30–35mm
Material: Aluminum

Transverse Duct Connector Flange Machine

Automated flange forming for transverse duct connections.

Function: Flange Forming
Application: Round & Oval Ducts

Flat-Oval Duct Series

Specialized machines for forming flat-oval ducts used in tight ceiling spaces.

Shape: Flat-Oval
Material: Galvanized & Black Steel
Thickness: 0.4–1.2mm
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Why Choose SBKJ?

Certified Quality

ISO9001:2000 and CE certified manufacturing standards ensure reliability and safety.

Global Reach

Trusted by customers in over 60 countries with localized support and service.

Modular Design

Flexible configurations allow customization based on production requirements.

Customer Support

Dedicated service team focused on customer satisfaction and long-term partnership.

200+
Machines Exported
60+
Countries
15+
Years in Market
98%
Customer Retention

Latest News

June 02, 2020

Stainless Steel Duct Characteristics

Stainless steel ducts offer wide adaptability and excellent ventilation performance, ideal for harsh environments.

June 02, 2020

Economic Benefits of Automation

Fully automatic duct lines reduce labor costs and increase output, delivering strong ROI for manufacturers.

May 11, 2020

Square Tube Punching Adjustment

Learn how to fine-tune the sliding friction and detection settings for optimal punching accuracy.

Contact SBKJ

Get in touch with our team for product inquiries, technical support, or partnership opportunities.

Phone

86-510-86065300

Email

sb@sbkj.com

Address

No.78 Huanxi Road, Zhutang Town, Jiangyin City, Jiangsu, China

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