New Year, New Atmosphere.

New Year, New Atmosphere. LOCK is committed to providing quality services and high-quality, affordable machines.

LOCK Duct Machinery will join the 2025 BIG 5 in Riyadh KSA

LOCK Duct Machinery will join the 2025 BIG 5 in Riyadh KSA from 15-18th Feb, 2025. Wish we can meet you face to face! Add: Riyadh Front Exhibition & Conference Center, Saudi Arabia Booth No.: 1G66-M

Merry Christmas

"I hope the magic of Christmas fills every corner of your heart and home with joy—now and always." ❤❤❤❤❤ "May your family have a holiday season that is full of wonderful surprises, and you are well with your family and friends .  

Impressive experience in Dubai Big 5!

Impressive experience in Dubai Big 5! Thanks for the old customers' visiting, we also met a lot of new friends and get along very well with each other. Let us look forward to further cooperation.  LOCK is ready to welcome the Chinese New Year, and we are rushing to finish clients' orders! Looking forward to our next meeting!

Let's show you how to make TDF Duct by automatic operation

Advantages of spiral ducts

1 Good product matching and high degree of standardization; 2 Strong airtightness; 3 Low ventilation loss; Low ventilation noise, round tubes are better than square tubes. 4 Convenient factory inspection; 5 Material saving; 6 Convenient installation, few connection points, small installation space, and low installation cost. 7 The overall installation layout is beautiful and high-grade. 8 Convenient daily maintenance and cleaning. 9 Small cross-section wet perimeter, small resistance along the way, and smaller energy loss. 10 Fully machined, one-time molding without secondary processing. 11 High-speed flying cutting machine is used, and the pipe diameter accuracy is high. 12 Four methods are used: reducing sleeve connection, sleeve connection, flange connection, and belt connection, which makes installation more convenient. 13 The quality of external insulation of the pipe is better than that of rectangular ducts.