Company Advantages1. Ceaseless innovation of our engineers and the advanced production method give ZORON Machinery industrial heavy duty sewing machine unique design and fine finish.
2. The product is not likely to occur electric leakage. All its electric components are sophisticatedly encapsulated in the housing, which guarantees no accidental contact.
3. The product features excellent noise reduction performance. When sound waves travel through the panels, its fiberglass fibers or foam pores will vibrate and increase friction.
4. Over the years, Dongguan ZORON Machinery Co., Ltd. has formed a strong R&D strength and a sound sales and service system.
5. heavy duty sewing machine is world-wide renowned for high quality.

Product Feature
Using the large vertical rotating hooks.
① Divided into single needle, double needles, synchronous cog belt plunger pump lubrication system.
② The machine drive slide on comprehensive performance, low noise, high durability.
③ Especially suitable for car seat cushion, seat belts, air bags, also can be applicable to the tent, parachute and other large equipment, etc.
Product Information
Product name |
4420 heavy duty Triple Transport Feed Leather Sewing Machine for sofa |
Model |
ZL-4420 |
Needle |
DY×17 |
Presser lift height |
13mm |
Max Sewing Speed |
2000 s.p.m |
Presser foot lift |
8-16 mm |
Dimension |
1200*540*860 MM |
Max stitch length |
9 mm |
Feed Mechanism |
Compound feed |
Characteristic |
Heavy duty compound feed lock stitch sewing machine series & double needles |
Product description
Product application
Company Features1. Dongguan ZORON Machinery Co., Ltd. is the brand of great influence on the whole heavy duty sewing machine business.
2. Dongguan ZORON Machinery Co., Ltd. adopts integrated design of industrial heavy duty sewing machine and automatic button attaching machine .
3. Dongguan ZORON Machinery Co., Ltd. is in relentless pursuit of excellence for best sewing machine . Inquire online! Dongguan ZORON Machinery Co., Ltd. is in the pursuit of long-term and stable relationships with our customers. Inquire online! Consciously integrating ZORON Machinery’s business with national strategy and social progress is the policy that keeps our company active. Inquire online!