Zhejiang Kangjia Machinery supplies machined rollers and drums for industrial machinery. This page covers roller inquiries for slotting machines, coating machines, flat-tape drawing lines and other equipment. The gallery shows examples of solid, hollow, shaft-type and textured-surface constructions. These photos illustrate possible forms; they are not a fixed specification or a promise that one roller fits every machine.
A replacement or new-design roller has to work with the machine around it. The working face, outer diameter, shaft ends, mounting method and required surface should therefore be checked against your drawing and operating conditions. If you are replacing a worn part, a drawing, clear photos or a sample can help identify the details that need to be confirmed.
The short video shows a roller machining example. It gives a closer look at the scale and form of the workpiece; it is not a specification sheet for every roller shown on this page.
For slotting machinery, start with the machine model and the position of the roller in the process. The roller's face length, outer diameter, shaft ends and mounting fit must correspond to the existing equipment. The material being handled and the required contact surface also matter when discussing a replacement or new part. Send the original drawing or photos of the installed roller, including both ends, so the configuration can be reviewed instead of guessed from one overall dimension.
For coating equipment, describe the coating process and the material or web that contacts the roller. Working width, surface requirement, shaft connection and available installation space should be provided together. A photo may show the general roller shape, but it cannot establish the finish, tolerance or compatibility your process needs. Kangjia can discuss a coating-machine roller against your drawing and confirm the agreed details project by project.
For flat-tape drawing lines and related plastic-processing equipment, identify the roller's location in the line and whether it is a new component or a replacement. Useful inputs include the machine model, existing roller dimensions, shaft-end form and any surface requirement shown on the drawing. If several rollers look similar, label their positions in your photos or drawing so that each part can be discussed separately.
Industrial machines may call for different roller body and end arrangements. The photos on this page include solid drums, hollow constructions, shafts and textured surfaces, but these are reference examples rather than a universal catalogue of ready-made specifications. If your equipment is not one of the applications above, send the machine type and part details. The proposed material, dimensions, surface and availability should be confirmed before ordering.
A useful roller inquiry describes both the cylindrical working area and the way the part is mounted. Please distinguish the full overall length from the working face length, and show the form of both shaft ends. If the drawing calls for a special surface, identify the relevant area and state the required finish or pattern. For an existing part, note any changes you want from the original rather than assuming the new roller should be an exact copy.
Solid, hollow and textured examples are visible in the gallery, but the appropriate construction depends on the specific machine and duty. Kangjia will confirm what can be made against the supplied drawing and requirements. No diameter, material grade, tolerance, coating or service-life figure should be inferred from a photograph alone.
Identify the equipment: machine type, model, process and roller position.
Provide the part reference: technical drawing, existing-part photos or sample details.
Define the body: outer diameter, working face length and overall length where available.
Define the ends: shaft, journal, bearing-seat and mounting details shown on the drawing.
Describe the contact surface: material being handled, required finish or pattern, and any specified tolerance.
State the order need: quantity, destination and whether this is a replacement or new design.
If any dimension is unknown, mark it as unknown in your inquiry. This helps separate information that is confirmed from information that still needs technical review.
The following images are additional views from Kangjia's roller and workshop materials. They help show different shapes and constructions; they should not be read as model-specific photographs of slotting, coating or drawing-machine parts.
Yes. Send clear photos of the whole roller, both shaft ends and the machine position, together with any dimensions you can measure. A drawing or sample may still be needed before the final configuration can be confirmed.
No standard dimensions are implied by the photos. They are visual examples. Ask about the required size and structure with your drawing or part details.
No. The appropriate roller depends on the machine, its mounting arrangement and the process requirements. Confirm the final specification for the actual application.
Email the machine information, drawing or photos, target quantity and destination to info@kjmach.com. Kangjia can then discuss the roller body, shaft ends and surface details with you. Dimensions, material, finish, production scope and other order terms are confirmed for each project.
Founded in 2012, Zhejiang Kangjia Machinery Co., Ltd. is based in Longshan Industrial Park, Aojiang Town, Pingyang County, Zhejiang, China. The company operates a 3,000 m² production site and manufactures flat-tape drawing and extrusion machines, winding machines, Crochet Knitting Machines, film-lamination equipment, circular looms, pelletizing machines, Hydraulic Balers and related machinery. Its products are supplied across China and exported to Russia, the Middle East, Africa and Southeast Asia. Kangjia has production, technical, R&D and design teams, and discusses custom machine dimensions and functions against each buyer’s requirements. It provides technical guidance and after-sales support for its equipment. The company is a member of the China Plastics Machinery Industry Association and the China Packaging Federation. Final specifications, delivery scope and service terms are confirmed in the project quotation.
An industrial roller is a cylindrical component used at a defined position in a machine. Its function and required construction depend on the equipment and the material it contacts. The terms below help buyers describe a roller accurately when requesting a custom part.
The working face is the cylindrical area intended to contact or support material. State its usable length separately from the overall end-to-end length. The outer diameter should be taken from the drawing or measured part, not estimated from a photograph.
Shaft ends, journals and other mounting features connect the roller to the machine. Provide clear dimensions for both ends, including any bearing or coupling interfaces shown on the drawing. Two rollers with similar bodies may not be interchangeable if their ends differ.
A solid roller has a solid body, while a hollow roller has an internal opening or shell construction. A textured surface has a visible pattern rather than a plain smooth finish. Kangjia's images show examples of these forms, but the images alone do not establish a material grade, tolerance, surface treatment or suitability for a specific machine.
For a slotting machine, coating machine or flat-tape drawing line, identify the equipment model, roller position, material being processed and relevant operating conditions. The final roller configuration should be checked against the actual machine and drawing; an application name by itself is not enough to specify the part.
Machine type, model and roller position
Drawing, sample information or clear photos of the existing part
Outer diameter, working face length and overall length
Dimensions and form of both shaft ends
Required material, surface finish, pattern and tolerances if specified
Quantity and delivery destination
Mark unknown items clearly. Kangjia will discuss the available configuration after reviewing the supplied information; do not treat reference images or this guide as a final engineering specification.
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