Pratt Burnerd offers a comprehensive range of high-quality scroll chucks, each crafted from durable materials for reliable and precise performance.

The Super Precision Chuck, a trusted choice on the world’s most popular manual lathes for many years, and excels in high-speed applications. 

The Standard Accuracy Chuck is our cost-effective alternative to the Super Precision (SP) chuck, specifically designed to enhance the performance of older lathes.

The Dust Proof Chuck from Pratt Burnerd International is ideal for mass production workshops where dust often causes chuck breakdowns, which can lead to reduced productivity.

The Lever Operated Scroll Chucks have been designed specifically for use on small precision machines such was watchmaker's lathes, glass working lathes, light grinding machines, engraving machines and other similar applications.

The Pratt Burnerd International Super Thin Round Chuck —the ultimate choice for precision and efficiency in machining. This versatile, low-profile 3-jaw chuck excels in applications like drill presses, mills, machining centres, and grinding machines.

Super Precision Chuck -

Constructed from high-strength nodular iron, it features hardened and ground jaw strips to ensure extended working life. Through-the-body mounting holes facilitate easy installation, and a comprehensive range of fully machined adaptor plates is available to fit most common spindle noses. Available in sizes rangng from 80mm to 400mm.

This chuck also provides you with 30µm T.I.R. accuracy up to 250mm, and 50µm T.I.R. for sizes 315mm and above, using the nominated pinion. With repeatability of 25µm across all sizes and three hardened pinions, you can rely on its consistent precision. Each chuck comes equipped with a set of hard inside jaws and a set of hard outside jaws, ready for any task. These chucks are also available with two-piece American standard tongue and groove jaws.

Standard Accuracy Chuck -

These slightly slower-rated chucks are ideal for applications where high speed and ultra-precision are not essential, making them a perfect choice for older machines. Constructed from high-strength nodular iron, these chucks feature hardened and ground jaw strips for exceptional durability.

The through-the-body mounting holes facilitate effortless installation, and these chucks offer the flexibility to be used with the same wide range of ready-to-fit adaptor plates as our Super Precision chucks. Available in sizes rangng from 80mm to 500mm.

Offering precision with 100µm T.I.R. up to 160mm, 150µm T.I.R. for 200 to 250mm, and 200µm T.I.R. for 315mm and above, these chucks ensure consistent repeatability of 25µm across all sizes. They are equipped with three hardened pinions for reliable, smooth operation. Each chuck includes one set of hard inside jaws and one set of hard outside jaws.

Dust Proof Chuck -

Want to use your existing Serrated Soft and Hard Top Jaws. Look no further than the Dust Proof Manual Chuck - the latest innovation from Pratt Burnerd International.

This self-centring chuck, operated by a scroll mechanism, features serrated base jaws with limited movement, sealed to prevent dust entry. To overcome the limitation of the base jaws' restricted movement, the serrations allow the top jaws to shift inward and outward, accommodating any diameter within the chuck's permissible gripping range.

Available in sizes 160mm to 315mm and with One Year Warranty!

• Uses 1.5mm X 60 degree Master Jaws and Top Jaws
• Maximum.003" TIR using nomination pinion
• Three hardened pinions
• SG Iron Bodies
• Precision manufactured for adapter plate mounting

The design of the Dust Proof Chuck means it's lifespan is extended by 60%, and eliminates the need for frequent cleaning and minimises productivity loss. This combination of increased productivity and extended chuck life makes the Dust Proof Chuck an essential piece of equipment for any mass production workshop.

Light Duty Lever Operated Scroll Chuck -

Grip is limited, since the design is without gearing, but this facilitates holding fragile or easily deformable components. Normally supplied with one set each of inside and outside jaws. We can supply soft jaws for these models.

Pratt Burnerd International Super Thin Round Chuck -

Key Features:

• Three pinions at a 45-degree angle for smooth, easy operation.
• Available in four sizes (160mm to 315mm) to suit various needs.
• Flange-type mounting ensures quick, secure installation.
• 25μm repeatability ensures exceptional precision on duplicate parts.
• Durable American standard hard top and master jaws.
• 12-month warranty for added peace of mind.

Ideal for high-precision work, the Super Thin Series delivers innovation, performance, and reliability. Also available in a 4-jaw square configuration for enhanced versatility.