Author: Process Heating Engineer Publish Time: 2026-07-02 Origin: Site
When a UV lamp or LED-UV module needs replacement, many buyers first send a short message such as “I need a Heidelberg UV lamp” or “Can you replace this UV module?” This is a useful start, but it is not enough for accurate replacement confirmation.
UV lamps and LED-UV modules used in printing presses are not always standard universal parts. Even if two machines are from the same brand or the same press series, the UV curing section may use different lamp lengths, arc lengths, power ratings, cap types, connector structures, cooling methods, cable directions, and mounting designs.
For this reason, YFR recommends sending both clear photos and basic technical specifications before quotation. This helps reduce replacement mismatch, installation problems, and unnecessary communication.
For general UV product options, you can first check the UV Lamps category, which includes UV lamps, UV mercury lamps, UV exposure lamps, and LED-UV replacement modules for printing and industrial curing systems.
A UV mercury lamp replacement is usually confirmed by the original lamp code, lamp size, arc length, rated power, voltage, cap type, cable structure, and application equipment.
If the original lamp code is available, it can speed up the evaluation process. If the original code is not available, clear photos and accurate measurements become more important.
If the original UV lamp has a label, marking, model number, or lamp code, take a clear close-up photo and send it with your inquiry. The most useful label information usually includes the original lamp code, rated power, voltage, arc length, total length, lamp type, wavelength reference, and supplier or brand name if available.
If the label is damaged or unreadable, do not rely on the machine model alone. Send clear photos of the full lamp body, both ends, cap structure, connector, cable, and installation position. These photos can help YFR make an initial replacement evaluation.
For UV mercury lamp replacement, total length and arc length are two different measurements.
Total length means the full overall length of the lamp from end to end. Arc length means the effective light-emitting length inside the lamp. These two dimensions should not be confused because a lamp with the same total length may have a different arc length, which can affect UV curing coverage and compatibility with the original reflector or curing system.
When measuring, place a ruler or tape measure next to the lamp and take a photo with the measurement visible. This is especially useful when the original code is missing or unclear.
Rated power and voltage must match the original UV system requirement. Length alone is not enough to confirm a suitable replacement.
Before quotation, try to provide the rated power, voltage, current, power density if available, and original ballast or power supply information if you have it. For printing press UV curing systems, incorrect power matching may affect curing performance, lamp stability, or system compatibility.
Lamp diameter, cap type, cable structure, and connector type all affect installation. Even small differences in the ceramic cap, metal cap, cable length, terminal type, or connector direction may create installation problems.
For this reason, photos of both lamp ends are important. A good photo set should show the lamp body, both caps, cable exit direction, connector type, and any special end structure.
Please also provide the application equipment information, including the machine brand, machine model, UV system brand if available, printing width, curing position, application process, and ink or varnish type if known.
For example, if the lamp is used in a Heidelberg Speedmaster, Roland, IST, GEW, Eltosch, or other UV curing system, this information should be sent together with the lamp photos and measurements.
LED-UV module replacement requires more information than traditional UV mercury lamp replacement.
A LED-UV module is usually an integrated assembly. It may include LED curing windows, aluminum housing, water-cooling connectors, power or signal cables, mounting holes, installation brackets, and control-related interfaces. If one structural detail does not match the original system, the module may not install correctly even when the wavelength or power output looks suitable.
For selected printing press applications, YFR supports LED-UV Replacement Lamp Module for Heidelberg DryStar-Type Curing Systems. To evaluate replacement feasibility, the original module information must be checked carefully.
Please send clear photos of the original LED-UV module from multiple angles. A complete photo set should include the front view, back view, left end, right end, connector area, water-cooling connector, cable direction, mounting hole position, original label, and installation position inside the machine.
A single front-view photo is usually not enough. The supplier needs to see the module structure, cooling connection, cable routing, mounting design, and available installation space.
Wavelength is one of the most important parameters for LED-UV curing.
395 nm UVA is commonly used for LED-UV ink and varnish curing applications, but it should not be assumed without confirmation. Other wavelength options such as 365 nm or 385 nm may also be used depending on the ink system, varnish type, and original module design.
If the wavelength does not match the curing chemistry, the printed sheet may not cure properly even if the module can be installed mechanically.
Power output should be confirmed according to the original LED-UV module and curing requirement. If the original power output information is available, send it together with the module photos and machine model.
Power output should be selected according to ink formulation, substrate, printing speed, curing width, cooling design, and machine integration. Higher output is not always the correct solution if the existing system is not designed for it.
Many LED-UV modules used in printing press curing systems use a water-cooled structure. Cooling details must be confirmed before replacement.
The key cooling details include water inlet position, water outlet position, cooling connector size, pipe direction, sealing structure, cooling pipe clearance, and available installation space around the connector. If the cooling connector does not match the original system, the module may not be installed correctly or may not operate reliably.
Connector type and cable direction are critical for installation. Before quotation, send photos showing the power cable, signal cable, connector type, cable exit direction, cable length, cable routing, and connection position inside the curing system.
A cable that exits from the wrong side may create installation interference, even if the module size and wavelength are correct.
The replacement LED-UV module must align with the original mounting structure. Please provide photos or measurements of the mounting holes, bracket position, module thickness, installation angle, screw hole distance, available machine space, and installation clearance.
For retrofit systems or non-standard modules, a drawing is helpful. If no drawing is available, clear photos from multiple angles can support initial evaluation.
Clear photos can greatly improve replacement evaluation accuracy. Before sending an inquiry, prepare a complete photo set instead of sending only one product image.
For UV mercury lamps, focus on the full lamp body, both ends, cap structure, cable, connector, label, and measurement photos. For LED-UV modules, focus on the front LED window, back side, cooling connector, power or signal cable, mounting holes, module label, and installation position.
A practical photo set should include:
Full product view with the complete lamp or module visible.
Close-up photos of both ends, connector area, cable direction, and label.
Photos of cooling connection and mounting holes if the product is a LED-UV module.
Photos inside the machine showing the installation position and surrounding space.
At least one photo with a ruler, tape measure, or size reference.
A good photo set helps YFR check whether the inquiry should be treated as a standard lamp replacement, a custom UV lamp, or a customized LED-UV module project.
In addition to photos, written specifications are useful because photos may not show all technical details clearly.
For UV mercury lamp replacement, please provide the machine model, UV system brand if available, original lamp code, total length, arc length, rated power, voltage, lamp diameter, cap type, cable length, connector type, quantity, application process, and ink or varnish type if available.
If you are not sure how to measure the lamp, send photos with a ruler and YFR can help review the key dimensions.
For LED-UV module replacement, please provide the press model, original module photo, original module label or code if available, wavelength, power output, cooling method, module length, working width, connector type, cable direction, water pipe connection type, mounting hole position, control interface, installation position, quantity required, and ink or varnish type if available.
For Heidelberg DryStar-type applications, the original module photo, cooling method, connector structure, cable direction, and mounting design are especially important.
Many replacement projects are delayed because the first inquiry does not include enough information. The following issues are common and should be avoided before quotation.
One photo is rarely enough for replacement confirmation. A front-view photo may show the product appearance, but it does not show the connector, cable direction, cooling connection, mounting holes, or label information.
For better evaluation, send multiple photos from different angles.
For UV mercury lamps, arc length and total length are different. Total length is the full length of the UV lamp from end to end. Arc length is the effective light-emitting length.
If these two dimensions are confused, the replacement lamp may not match the original curing area.
For LED-UV modules, cooling connections must be checked carefully. Water inlet and outlet position, pipe direction, connector size, sealing structure, and installation clearance can all affect replacement feasibility.
A module with the correct LED window length but incorrect cooling connection may still fail to install.
The press model is useful, but it is not enough. Different machines from the same series may use different UV curing systems depending on production year, retrofit history, printing width, and curing configuration.
Always send the original lamp or module photo together with the press model.
Connector type and cable exit direction often decide whether the replacement can fit the machine smoothly.
Please take close-up photos of all connectors, cables, terminals, and routing positions.
YFR follows a structured review process before quotation.
First, YFR checks the original lamp code, module label, machine model, and product photos. If the information is complete, the replacement direction can usually be identified more quickly.
Next, YFR confirms the key technical data. For UV lamps, this includes total length, arc length, diameter, power, voltage, and cap type. For LED-UV modules, this includes wavelength, power output, module length, working width, cooling method, and module structure.
After that, YFR reviews the connector, cable, and mounting structure. This step is important for installation compatibility because connector type, cable direction, water pipe connection, mounting hole position, and available installation space can all affect the final replacement result.
Once the structure and technical data are clear, YFR evaluates whether the product can be supplied, customized, or developed according to the original sample. If more information is needed, YFR may ask for additional photos, drawings, or measurements.
After the replacement structure is confirmed, YFR can provide quotation, lead time, and production suggestions. For repeat orders, confirmed specifications can be recorded as the production reference for future maintenance supply.
YFR supports UV and infrared replacement solutions for printing press drying and curing systems.
For UV lamp and LED-UV module options, visit the UV Lamps category. For selected Heidelberg DryStar-type LED-UV curing applications, see LED-UV Replacement Lamp Module for Heidelberg DryStar-Type Curing Systems.
For infrared drying lamp replacement, you can also view Heidelberg Replacement Lamps and FMW IR Emitter for Printing Drying and Coating Curing.
For printing presses that use both infrared drying and UV curing, YFR can help evaluate different replacement products in the same equipment system.
Need a UV lamp or LED-UV module replacement for a printing press or industrial curing system?
Please send us your lamp code, machine model, lamp or module photo, wavelength, power, arc length, total length, cooling method, connector type, cable direction, mounting structure, and installation position.
YFR will review the structure and provide a replacement evaluation before quotation.
Recommended product: LED-UV Replacement Lamp Module for Heidelberg DryStar-Type Curing Systems
Related category: UV Lamps for Printing, Curing and Industrial Equipment
Yes. YFR can make an initial replacement evaluation from clear photos, but final confirmation usually also requires dimensions, power, voltage, arc length, connector type, and application equipment information.
Please send the full lamp view, both ends, lamp label or code, cap type, cable, connector, and installation position. If possible, include photos with a ruler or size reference.
Total length is the full length of the UV lamp from end to end. Arc length is the effective light-emitting length. For UV curing applications, arc length is important because it affects curing width and UV coverage.
Please send the original module photo, press model, wavelength, power output, cooling method, module length, working width, connector type, cable direction, water pipe connection, mounting hole position, control interface, and installation position.
YFR can support replacement evaluation for selected Heidelberg UV lamp and DryStar-type LED-UV curing applications. Final compatibility should be confirmed by original lamp or module photo, machine model, drawing, and technical specification before production.
Yes. After the specification is confirmed, YFR can record the replacement structure for future repeat production and maintenance supply.
YFR is not affiliated with Heidelberg, DryStar, Speedmaster, IST, GEW, Roland, or other related equipment brands. Product names and machine models are used only to describe replacement application and compatibility evaluation.
Final replacement compatibility should be confirmed by original lamp or module photo, machine model, drawing, and technical specification before production.
