| Rotational Molding Machine Manufacturer | ||||||||||||||||||||||||
| Vinodrai Incorporated | ||||||||||||||||||||||||
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Company Profile Vinodrai Incorporated is pioneer in Rotomolding plants and special purpose machines since 1988. We are a team of experienced engineers , we employ latest computerized techniques in design and development. We have manufactured and supplied a variety of special purpose machines / plants in field of rotational molding , non-stick coating , vacuum forming and many engineering units. We have designed , manufactured and commissioned the first 10000 Lit. bi-axial rotational molding machine. We incorporate state of art technology in rotational molding machines. We manufacture Multi-Arm , Independent Arm , Rock-n-Roll and Clamshell types of machines. We also make machines to suit specific needs of user. We also provide product design and mold development services. | |||||||||||||||||||||||
| New Concept In Rotational Molding | ||||||||||||||||||||||||
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Vinodrai Incorporated C-28, Additional M.I.D.C. , Jalna -431 203 ( India). Vinodrai Incorporated is pioneer in Rotomolding plants and special purpose machines since 1988. We are a team of experienced engineers , we employ latest computerized techniques in design and development. We have manufactured and supplied a variety of special purpose machines / plants in field of rotational molding , non-stick coating , vacuum forming and many engineering units. We have designed , manufactured and commissioned the first 10000 Lit. bi-axial rotational molding machine. We incorporate state of art technology in rotational molding machines. We manufacture Multi-Arm , Independent Arm , Rock-n-Roll and Clamshell types of machines. We also make machines to suit specific needs of user. We also provide product design and mold development services. The Rotational Molding Process Rotational molding is a very simple process for manufacturing hollow , seamless products of all sizes and shapes. Due to its simple operation & relatively low cost molds, this process has become very popular for manufacturing large hollow items like water storage tanks. Rotational molding is a three stage process. In the first stage polymer powder is loaded in the mold manually and the mold is closed. The mold is then shifted to the heating oven . Here the mold is heated by forced hot air circulation. While the mold is heated it is also rotated about two perpendicular axes simultaneously. Polymer melts and forms a homogenous layer inside the mold. The mold is shifted to a cooling station where forced air cools the mold. The mold is opened and finished part is taken out. Unlike injection and blow molding, rotational molding does not involve high pressures , hence the products are stress free and have uniform wall thickness . Accurate control of the process is very important for producing quality products in rotomolding. Advantages Of Rotomolding. 1) One piece molding. 2) Lower mold cost. 3) Stress free products with uniform wall thickness. 4) Multi-Layered product possible. 5) Minimum scrap losses. 6) Double wall construction possible. 7) Unlimited product design freedom. Rotational Molding Machine With increase in production levels , and market competition , selection of proper rotational molding machine assumes great importance. Following are main types of machines we make at Vinodrai Incorporated. A) Rock-n-Roll Type : These are low cost , open flame machines , suited for low volume and large size products. Difficulty in maintaining uniform wall thickness and requirement of skilled operators are main disadvantages. B) Bi-Axial Type : These are highly productive , state of the art machines , suitable for large volume productions. Uniform wall thickness , consistent quality , operator independent process control are a few advantages of these machines. We at Vinodrai Incorporated offer following sizes of bi-axial machines. a) Two Arm Machine of 1000 Litre , 2000 Litre and 5000 Litre capacity. b) Three Arm Machine of 1000 Litre , 2000 Litre and 5000 Litre capacity. c) Four Independent Arm Machine of 1000 Litre capacity. d) Clamshell type machine of 5000 Litre and 10000 Litre capacity. Setting New Standards in Rotational Molding. Vinodrai Incorporated is committed to setting new standards in rotational molding by incorporating latest state of the art technology . Our machines are real " Work Horses". New features we have introduced. 1) Optimized hot air circulation for uniform heating of mold. 2) Automation of door , turret and trolley movements for lower manpower . 3) Efficient oven design for lower fuel consumption. 4) Highly productive and maintenance free machines reduce per piece production cost. Two Arm Bi-Axial 1000 Litre Machine. Model VI-2-1000. Model VI-2-1000 is a two arm bi-axial type machine . Recommended maximum capacity of this machine is 1000 litre mold on L arm and two molds of 500 litre on straight arm. Equipment included in Model VI-2-1000 is as follows. 1) Oven Chamber : Constructed of steel structure , with stainless steel sheet in combustion zone and high temperature aluminium paint coated sheet in working zone. Each panel is fully insulated with a combination of ceramic and mineral wool. Oven doors are constructed with 75 mm light weight sheet metal "Z" sections. Doors are operated by 0.5 hp. geared motor. Door drive is protected by overload clutch. Burner with capacity of 1,60,000.00 kcal / Hr. is used for rapid heat recovery. Monoblock type Italian burner is used with fully automatic ignition system and temperature control. A 5.0 hp. high volume recirculating blower is used for hot air circulation. Blower is made from stainless steel to give maximum life. A 1.0 hp. exhaust blower is also provided. 2) Rotating Unit : The rotating unit is of welded steel construction , consisting of two arms. On standard machine we provide one offset arm and one straight arm. Each arm is driven by two DC motors . Major axis drive is 2 hp. and Minor axis drive is 1 hp.. Arm structure is heavy-duty and bearing system is very rugged. Trolley movement and turret rotation is automatic by 1 hp. geared motor each. Trolley and turret drives are protected by overload clutches. 3) Cooling Section : We provide two high power air circulating fans for faster cooling of molds. 4) Control Panel : Sheet steel , powder coated housing enclosing all controls. Mains switch fuse unit , D.C.Drives , Process timers , Motor starters , overload protection and alarm buzzers assist in process control. 5) Unique Double Layer Attachment : Developed for the first time we optionally offer a unique double layer attachment for producing double layer water tank. 6) Estimated Production Capacity: The machine can produce upto 48000 Litres capacity of water tanks per day on three shift basis. Technical Specifications : Model No. : VI-2-1000 Spindles ........................................................................... 2 Maximum Weight On straight Arm ................................................... 400 Kg. On offset Arm .................................................... 250 Kg. Spider Diameter ............................................................... 1300 mm Major Axis R.P.M. ( x-axis ) ........................................... 0-10 Minor Axis R.P.M. ( y-axis ) ........................................... 0-20 Furnace / Oven Maximum Kcal / Hr. ................................................. 1,60,000 Normal Usage ................................................. 1,10,000 Maximum Temperature oC ......................................... 250 Circulating Blower C.F.M. ................................... 12,000 Exhaust Blower C.F.M. ......................................... 1600 Combustion Blower C.F.M. at 32 SWG........................ 275 Cooling Blower Air C.F.M. .............................................................. 6000 Electrical Supply Voltage. ............................... 440 V , 3 Ph & Neutral Oven Circulating Blower H.P. .................................................... 5.0 Oven Exhaust Blower H.P. ......................................................... 1.0 Cooling Blower H.P. ................................................................ 2.0 Combustion Blower H.P. ............................................................ 3.0 Oil Pump Motor H.P. ................................................................ 1.0 Turret Drive Motor H.P. ............................................................. 1.0 Trolley Drive Motor H.P. ............................................................ 1.0 Oven Door Motor H.P. ............................................................ 0.5 Major Axis Drive DC Motor H.P................................................ 2.0 Minor Axis Drive DC Motor H.P. ................................................ 1.0 . General Required Space in mm 8400 x 7100 x 4100 Three Arm Bi-Axial 1000 Litre Machine. Model VI-3-1000. Model VI-3-1000 is a three arm bi-axial type of machine . Recommended maximum capacity of machine is 1000 litre mold on L arm and two molds of 500 litre on straight arm. Equipment included in Model VI-3-1000 :- 1) Oven Chamber: Constructed of steel structure , with stainless steel sheet in combustion zone and high temperature aluminium paint coated sheet in working zone. Each panel is fully insulated with a combination of ceramic and mineral wool. Oven doors are constructed with 75 mm light weight sheet metal "Z" sections. Both doors are operated by separate 0.5 hp. geared motor. Each door drive is protected by overload clutch. Burner with capacity of 2,00,000.00 kcal / Hr. is used for rapid heat recovery. Monoblock type Italian burner is used with fully automatic ignition system and temperature control. A 5.0 hp. high volume recirculating blower is used for hot air circulation. Blower is made from stainless steel to give maximum life. A 1.0 hp. exhaust blower is also provided. 2) Rotating Unit : Rotating unit is of welded steel construction , consisting of three arms. On standard machine we provide one offset arm and two straight arms. Each arm is driven by two DC motors . Major axis drive is 2.0 hp. and Minor axis drive is 1.0 hp. Arm structure is heavy-duty and bearing system is very rugged. Turret rotation is automatic by 1.0 hp. geared motor. Turret drive is protected by overload clutch. 3) Cooling Section : We provide two high power air circulating fans for faster cooling of molds. 4) Control Panel : Sheet steel , powder coated housing enclosing all controls. Mains switch fuse unit , D.C.Drives , Process timers , Motor starters , overload protection and alarm buzzers assist in process control. All motors on turret are wired through unique maintenance free slipring system for uninterrupted operation. 5) Unique Double Layer Attachment : Developed for the first time we optionally offer a unique double layer attachment for producing double layer water tank. 6) Estimated Production Capacity: The machine can produce upto 96000 Litres capacity of water tanks per day on three shift basis. Technical Specifications : Model No. : VI-3-1000 Spindles ........................................................................... 3 Maximum Weight On straight Arm .................................................... 400 Kg. On offset Arm .................................................... 250 Kg. Spider Diameter ............................................................... 1300 mm Major Axis R.P.M. ( x-axis ) ........................................... 0-10 Minor Axis R.P.M. ( y-axis ) ........................................... 0-20 Furnace / Oven Maximum Kcal / Hr. ................................................. 2,00,000.0 Usage Normal ................................................. 1,40,000.0 Maximum Temperature oC ......................................... 250.0 Circulating Blower C.F.M. ................................... 12,000 Exhaust Blower C.F.M. ......................................... 1600 Combustion Blower C.F.M. at 32 SWG........................ 275 Cooling Blower Air C.F.M. .............................................................. 6000 Electrical Supply Voltage. ............................... 440 V , 3 Ph & Neutral Oven Circulating Blower H.P. ...................................................... 5.0 Oven Exhaust Blower H.P. ......................................................... 1.0 Cooling Blower H.P. ................................................................ 2.0 Combustion Blower H.P. ............................................................ 3.0 Oil Pump Motor H.P. ................................................................ 1.0 Turret Drive Motor H.P. ............................................................. 1.0 Oven Door Motor H.P. 2 Nos. ............................................... 0.5 Major Axis Drive DC Motor H.P................................................ 2.0 Minor Axis Drive DC Motor H.P. ................................................ 1.0 . General Required Space in mm 8400 x 8100 x 4100 | |||||||||||||||||||||||
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