gold roll mill

jewelry rolling machine - superb electromachinery co., limited

jewelry rolling machine - superb electromachinery co., limited

Jewelry rolling mill for sheet, it adds metal through extrusion, the metal thickness thinning, the surface is smooth.Pressure wheel surface is smooth, the product surface is smooth. Pressure roller surface is mirror effect, and then, the product surface is also a mirror effect.

Jewelry rolling mill for wire, it grinds groove corresponding to the circular, square shape in the upper and down pressure wheel surface , extrusion with different shape and size of the metal lines. It can also be in the upper and lower pressure wheel processing of the corresponding text and trademark patterns and other patterns, to get the desired effect.

1.It is currently made of roll materials with high hardness having the advantages of simple and solid structure, less space demands, low noise, and convenient operation.2.It adopts link gears which are synchronous and can ensure the uniform thickness of process metals and the accuracy of finished products.3.Multiple drive and different drive structures are combined; the speed is moderate and jamming can be prevented.4.The thick and heavy machine body increases the stability of equipment in operation.5.The manufacturing accuracy of equipment parts would be controlled strictly. The spare parts of the machine can be processed according to the accuracy on the drawing. The parts of the same model can be replaced with each other and the repair is fast and convenient.6.Mirror roll tablet machine can roll on the surface of metals to achieve mirror effect.7.Automatic fuel filling and lubricating system; no manual lubricating needed, and it is more personalized.

double roll crusher | henan deya machinery co., ltd

double roll crusher | henan deya machinery co., ltd

Roll crushers, or crushing rolls, or double roller crushers, are still used in some mills, although they have been replaced in most installations by cone crushers. They still have a useful application in handling friable, sticky, frozen, and less abrasive feeds, such as limestone, coal, chalk, gypsum, phosphate, and soft iron ores.

The mode of operation of roll crushers is extremely simple, the standard spring rolls consisting of two horizontal cylinders which revolve towards each other. The set is determined by shims which cause the spring-loaded roll to be held back from the solidly mounted roll.

Smooth-surfaced rolls are usually used for fine crushing, whereas coarse crushing is often performed in rolls having corrugated surfaces, or with stub teeth arranged to present a chequered surface pattern. Sledging or slugger rolls have a series of intermeshing teeth, or slugs, protruding from the roll surfaces. These dig into the rock so that the action is a combination of compression and ripping, and large pieces in relation to the roll diameter can be handled. Their main application is in the coarse crushing of soft or sticky iron ores, friable limestone, coal, etc., rolls of 1 m diameter being used to crush material of top size 400 mm.

Wear on the roll surfaces is very high and they often have a manganese steel roll, which can be replaced when they are worn out. The feed must be spread uniformly over the whole width of the rolls in order to give even wear. One simple method is to use a flat feed belt of the same width as the rolls. Since there is no provision for the swelling of broken ore in the crushing chamber, roll crushers must be starvation fed if they are to be prevented from choking. Although the floating roll should only yield to an uncrushable body, choked crushing causes so much pressure that the springs are continually on the work during crushing, and some oversize escapes. Rolls should therefore be used in closed circuit with screens. Choked crushing also causes interparticle comminution, which leads to the production of material finer than the set of the crusher.

There are two types of roller crusher, smooth roller and tooth roller. Smooth roller crusher crushes materials mainly by extrusion of two rollers, meanwhile also has function of grinding, it is good for medium and fine crushing of medium hardness materials. While tooth crusher crushes material mainly by chopping, also has function of grinding, good for coarse and medium crushing of fragile and soft rocks.

Double roller crusher model is named by roller diameter and length, for example model 2PG0640, 2 means two roller, P stands for crusher, G stands for smooth roller, 06 stands for roller diameter 600mm, 40 stands for roller length 400mm. Similarly, 2PGC500x750, C stands for tooth roller.

rolling mills

rolling mills

As a wholesale supplier to jewelers and other industry professionals, Rio Grande wants to avoid presenting wholesale pricing to retail consumers. In addition, the U.S. Patriot Act requires all suppliers of precious metals to maintain full contact information for all of its customers.

rolling mills, power gold international machinery | the one stop shop for all of your machinery, equipment, tool & die needs

rolling mills, power gold international machinery | the one stop shop for all of your machinery, equipment, tool & die needs

[ Mailing Address | Gold International Machinery, Corp | P.O. Box 998 Pawtucket, RI 02862 ] [ Physical Address: | 136 Newell Avenue | (corner of Thurston & Newell Sts.) | @Exit 26, Route 95 North | Pawtucket, RI USA 02860-0998 ] [ [email protected] | Toll Free: 1-800-619-GOLD | Phone: 401-724-3200 | Fax: 401-728-5770 ]

jewellery making supplies | cookson gold precious metals | jewellery findings

jewellery making supplies | cookson gold precious metals | jewellery findings

0345 100 1122

Swiss made Made from the highest quality steel 13cm long 22 teeth per cm Bundle of 12

Asbestos substitute 150 x 100 x 25mm Low thermal conductivity Moisture resistant Extra thick

Made of unglazed ceramic 4" diameter Perfect for use with Borax cone

Made from natural wool Ideal for fine polishing Mounted on 3/32 (2.34mm) shank 22 x 20mm diameter

Asbestos substitute up to 800C temperature resistant Low thermol conductivity Made from A1 non combustable material Ideal for protecting your work surface

Refills most butane torches Supplied with 5 adapter nozzles 300ml

Size 23 x 28cm Ideal for wet & dry preparation of metal Manufactured from a high quality silicone carbide Grade 800 = Medium Grit

Size 23 x 28cm Ideal for wet & dry preparation of metal Manufactured from a high quality silicone carbide Grade 600 = Medium/Coarse Grit

Size 23 x 28cm Ideal for wet & dry preparation of metal Manufactured from a high quality silicone carbide Grade 1200 = Medium/Fine Grit

Manufactured from high-quality steel Rounded backs for precision cutting heat treated for increased durability 56 teeth per inch Bundle of 12

Size 23 x 28cm Ideal for wet & dry preparation of metal Manufactured from a high quality silicone carbide Grade 400 = Coarse Grit

Swiss made Made from the highest quality steel 13cm long 23.5 teeth per cm Sold in a bundle of 12

Ideal for soldering smaller pieces Energy efficent Heat absorption Size 140mm X 70mm X 30mm

Size 2 fine round tip Made from durable camel hair Perfect for all jewellery soldering

Length 16.5cm Perfect for all soldering work Reverse sprung for ease of use Pack of 2

Entry level hand torch Ideal for small soldering tasks Simple electronic ignition Maximum temperature of 1300C Butane Gas sold separately

Made from dried flux Aides soldering Suitable with all solders Easily mixes with water to form paste

Made from German hardwood Fits worktops up to approx 50mm thick Bench peg measures 18.5x6x1cm

Ergonamically designed wooden handle Smooth finish Features steel ferrule for extra strength Suitable for all hand files

Perfect for all detailed soldering work 127mm length 0.5mm tip Not to be used with a pickle bath

Size 23 x 28cm Ideal for dry preparation of metal Can be cut and folded to desired size Grade 500 = Medium to fine grit

Swiss made Made from the highest quality steel 13cm long 26.5 teeth per cm Bundle of 12

Size 23 x 28cm Ideal for dry preparation of metal Can be cut and folded to desired size Grade 2000 = Fine grit

51mm square polishing pads Made from a tight-bond foam Removing tarnish and polishing to a high lustre Supplied in a pack of 20

Perfect for removing oxides from Silver and Gold Mix with warm water for best results 500g

Please note all prices listed are based on cash prices and are exclusive of VAT. Prices for precious metal products are an estimate only and can vary slightly depending upon the metal price, the actual weight and the cutting tolerances which we are able to achieve. Bullion prices are based on 10gm.

2021 Cookson Precious Metals Ltd. VAT Registration No. GB161 8062 21. Registered in England no. 2775187. Registered Office: 59-83 Vittoria Street, Birmingham, B1 3NZTel: 0345 100 1122 or 0121 200 2120 Fax: 0121 212 6456

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