Jyoti Industries

Patel Colony, Jamnagar, Gujarat

Jyoti Motorised Spindle are precision instruments designed for years of continuous use for diamond polishing. These spindles have an unmatched reputation in the gem and industrial diamond industry. Spindles are direct drive motors for the scaif plate and normally sold to be fitted to the customer's own benches. The Expanding Nose is a very important feature, which ensures the scaif plate is centralised onto the spindle axis for smoother running and makes the changing of scaif plates much easier. As plates wear, they must be re-machined occasionally. If fixtures are carefully set, then it is useful to be able to raise or lower the height of the plate surface to maintain its working level. A variable spindle is available. It is recommended dust is removed constantly during use to protect operators. An air-flow type spindle is available.This uses the natural centrifugal action of the high speed rotation of the plate to draw air and dust into the bowl beneath and then to a filter or external exhaust. We recommend you use a PB2 Portable Balancer to dynamically balance the scaif plate in-situ. Features

• High efficiency
• Easy and safe handling
• Durable

Our Product Range

• Diamond Polishing Benches with Motorised Spindle

We bring forth the best quality Diamond Polishing Bench in the market. JYOTI Diamond Polishing Mill is the outcome of 30 years of experience in an engineering industries engaged in design and manufacturing of high precision components. The Best design combined with right type of raw materials, heat treatment, perfection in component making, the latest technological development in antifriction ball bearings, grease, the utmost precision in dynamic balancing of all rotating members and assembly, correct way of assembly in controlled and dust free operation theatre like labs, perfect combination of cycles for running in testing and stabilizing YIELDS the UTMOST VIBRATIONLESS, SOUNDLESS, MAINTENANCE FREE diamond polishing mill, with 2 years PLUS of NO BOTHERATION service LIFE. The type of product JYOTI gives is only of its kind available in the diamond polishing industries. The first DPM was rolled out from our workshop in 2004 and since then almost 40 such DPM ( Ghantiâs ) are in service at our most valued customerâs places till date. Features

• The stopping of DPM can be made in just 25 seconds electronically using VFD drives. This reduces the machines downtime during scaife balancing and no damage to bearing or motors & most importantly to the operator as could happen during mechanical breaking
• This VFD breaking ensures there is no external force or jerk used to stop the DPM thereby helping to retain the vibration-less characteristic over a long period of service.

Thus JYOTI DPM are most suited for :

• All size of diamonds
• Produces higher quality
• Providing symmetrical facets
• Better smoothing of facets
• Lowest damage to stones since no humming or electrical resonance over lifespan in working conditions
• Today and in Future, all the better quality like â triple excellent â , matching GIA parameters , Hearts & Arrows , one grainer and above goods will need certifications.
• These are not possible so much and with certainity on ordinary polish mills.

Salient Features

• Highly aesthetic look with user friendly design.
• Utmost Vibration Less
• Soundless
• Run-out on scaife resting face less than 0.002 mm.
• Leveling arrangement in the table legs.
• Scaife centrally mounted irrespective of its bore variation.
• EASY Balancing arrangement for complete scaife on motor.
• All rotating parts dynamically balanced to grade 0.4 as per DIN & assembled motor balanced in less than 0.1 mm / sec, velocity mode.
• Imported grease from GERMANY.
• Ultra precision matched pair bearings from GERMANY.
• All components manufactured on CNC Turning & Milling machine to achieve best accuracies on all dimensions.
• Assembled in dust free, spindle room using precision assembly tools by highly specialized persons.
• Rigorous testing & running in procedure on fully automated tests set up.
• Life expectancy more then 2 years. Maintenance free performance warranted for two years.

Servicing & maintenance of DPM We suggest having a few spindle motors ready for immediate replacement for any type of maintenance which will reduce DOWNTIME. Then these motors can be collected by us / sent to us, with all due care & we will make them as good as new ones. It is to be noted that this spindle assemblies cannot be attended at site due to high precise requirements.