BLKMA — HVAC Duct Making Machines | Ma'anshan, China

Anhui Blackma Heavy Industrial Machinery Co., Ltd (BLKMA) is a Chinese duct manufacturing equipment manufacturer founded in 1994, based in Ma'anshan, Anhui Province — just 26 kilometers from Nanjing Lukou International Airport, giving the company well-developed transportation access for customer visits. BLKMA is recognized as one of the most authoritative modern enterprises in China's pipeline processing machinery industry, having participated in setting national Chinese pipeline machinery industry standards.

The company holds CE, ISO, and SGS certification, and maintains partnerships with globally recognized component suppliers including Schneider Electric, Siemens, Mitsubishi, OMRON, and SKF — meaning key electrical and mechanical components are sourced from established international brands rather than unbranded generic parts. BLKMA provides overseas service including installation, commissioning, training, and maintenance for clients worldwide, with a confirmed export history including deliveries to Australia and Canada, and documented visits from American and Iranian customers.

Product Range

BLKMA manufactures a comprehensive range of HVAC duct production equipment across four core categories:

Auto Duct Production Lines — CNC air duct production lines, described as the highest-automation, highest-efficiency rectangular air duct production line machines available, including U-Shape and multiple generation models (Auto Duct Line 2 through 5)

Rectangular Duct Making Machines — CNC plasma cutting, CNC angle steel production lines, duplex and TDF flange forming machines, lock forming machines, hydraulic/pneumatic/hand folding machines, beading machines, shearing machines, lock seaming machines, corner punching and assembly machines, and riveting machines

Spiral Duct Machines — Spiral duct forming machines, round duct elbow machines, angle steel round rolling machines, and spiral round flat-oval duct machines

Round Duct Making Machines — Electric rolling machines, round duct lock forming/seaming machines, round duct grooving machines, bellows tube forming/bending machines, and round duct stitch welding machines

Why Buy From BLKMA

• 30+ years of manufacturing experience (founded 1994)
• CE, ISO, and SGS certified
• Component partnerships with Schneider Electric, Siemens, Mitsubishi, OMRON, and SKF
• Participated in setting national Chinese pipeline machinery industry standards
• Full overseas service — installation, commissioning, training, and maintenance
• Confirmed export history to Australia, Canada, and customer visits from the US and Iran
• 24-hour response time on inquiries, with video/photo troubleshooting support