Zuko Engineers


	Why should I opt for ZUKO patented door closer?
	It is because of its functional superiority, being very economical, opening 180⁰ of door & its sleek elegant shape.

	How ‘ZUKO’ patented door closer is functionally superior?
	It is functionally far superior because of the following three basic innovations : 1. Pinion on the front : First time in India 2. Central split fixation : First time in India 3. Speed control value towards open end (Handle) : First time in India

	How pinion on the front makes ZUKO closer superior?
	It has made total length of lever operational. As a consequence, opening of door has gone lighter………….. A boon for the aged, sick & children.

	How central split fixation has improved upon the working of ZUKO door closer ?
	1. Minimum 40mmx80mm fixation space is required against 50mmx180mm space for traditional closers. Ideally suitable for round doors. 2. Always refixation at same fixed master clamp. No damage to door when defective door closer is replaced. 3. No dependence on carpenter/technician for removal of defective door closer and for refixation of new one. Any one can do it easily. No recurring expenditure.

	What is plus in having speed control value towards handle?
	Towards handle is an open end. Wall is always towards hinges. You can regulate speed control value easily because unlimited space is available. Its speed control value being visible is a big plus.

	You claim that ZUKO door closer is very economical in the long run.Elaborate?
	It is true claim because of the following : 1. No payment to carpenter/technician for removal of defective door closer & refixation of new one. 2. ZUKO closer is more durable because here the lever is fully operational & the functional parts are under minimum load. 3. No damage of door when defective door closer is replaced because new closer is fixed at the same master clamp. 4. Its functional life is more because of its 180⁰ opening. 5. Rigorous quality control on accuracy in sizes, use of hardened & grinded parts, adoptions of multi safety controls against oil leakage & sound configuration. 6. Prompt honouring of commitments against any complaint of manufacturing defect.

	How far ZUKO door closer is functionally accurate?
	1. Effective speed cut at 20⁰ ± 5⁰. 2. Minimum bearing of temperature variations between-12⁰C to + 50⁰C on functioning of closer. 3. Effective latching of door. ………………… Enough power at the closing end. 4. Micro speed adjustment. ………………. Half circle movement of control value is enough. 5. 180⁰ opening of door.

	How do you asses any closer?
	A closer is a functional device to offer opening & regulated closing of doors of varing sizes, varing weights. It has to carry load of the door. Its must add to the beauty of the door. It must protect the door in the long run. 1. Load carrying capacity. 2. In-built closing power. 3. To what degree, it offers light opening. 4. Speed control effectiveness……………Micro or Wide. 5. Durability image of the closer in the market. 6. After-sale honouring of warranty image. 7. Last but not the least is the image & the reputation of the manufacturer.

	You claim that its design is 100% new, How?
	Yes, its design is 100% new. Design is duly registered vide registration no. 163083. The design is very compact, light weight, decorative. All control systems are concealed. Even fixation screws of clamp plate are not visible.

	Your two models namely ZUKO-ZU & ZUKO-KING have two speed control valves. Explain.
	In traditional closers there is always one speed control valve regulating only the last closing speed, but in our two models there are two speed control valves. They regulate both the first fast speed & the second closing speed independently. These are costly models for the elite.