Direct drive 4 thread overlock sewing machine This model is new generation overlock sewing machine,adopt latest desgin,built-in operation panel,simple and easy to operate. The machine adopts built-in direct drive servo motor. Max sewing speed 5000rpm Adopt energy saving design, improving production efficiency 30% and save electricity 60%. It's suitablef or knitting underwear,light,medium and heavy materials. Showroom Trade Show Certifications FAQ 1.Delivery time:10-15 days if the goods are in stock,or 15-20 days if the goods are not in stock,need production,also according to the order quantity. 2.Payment terms:30% T/T in advance,the balance to be paid by B/L copy.If amount is less then USD10000,T/T 100% in advance is required. 3.OEM service:we accept OEM but need to meet below conditions:1.brand not being registered in china,2.provide your band registration certification,3.order amount is more then USD30000. 4.Warranty:1 year for mechanic parts and 1 to 3 years for electronic parts like motor,PCB board,depends on the electronic compoments suppliers. 5.Your inquiry related to our products or prices will be replied within 48 hours 6.Well-trained and experienced staffs to answer all your inquriy in fluent English. 7.Inspect the goods before sending shipment,Take pic for customer to confirm before your goods packed. 8.We respect your feedback after receive the goods 9.Protection of your sales area,ideas of design and all your private information.