
Product Overview
The KR‑2504 tunnel‑style UV disinfection unit is a continuous‑inline surface‑sterilisation solution that adopts high‑intensity UVC ultraviolet radiation technology. As articles travel through the enclosed tunnel on teflon mesh conveyor belt, multi‑direction UV lamps disrupt the DNA / RNA structure of surface‑dwelling microorganisms including E.coli, staphylococcus, mould and multiple viruses, achieving high‑rate surface disinfection without introducing chemical residues.
This low‑temperature physical disinfection setup does not generate secondary pollution and can be seamlessly integrated into existing production workflows. It supports surface sterilisation for disposable masks, packaged food, cosmetics packaging, pharmaceutical accessories and other goods. Validated sterilisation performance reaches ≥99.9 %, with mask‑processing throughput up to 150 pieces per minute. It complies with GB 4789‑series microbiological test standards and finds broad deployment across food‑processing plants, cosmetic workshops, medical‑supply manufacturers and packaging production lines.

Core Product Competitive Advantages
- Multi‑directional high‑performance UVC lamp array for full‑perimeter exposure
Equipped with premium Osram germicidal UV tubes, lamps are arranged on top, bottom, left and right sides inside the tunnel cavity to realise near‑360‑degree omni‑directional irradiation. Peak UV intensity hits 5700 μW/cm². Height of lamp bank can be manually adjusted between 100‑180 mm to adapt articles of different thickness profiles.
- Ozone‑free low‑temperature physical disinfection
Optimised 254 nm UVC light source design minimises ozone by‑product output. It avoids ozone‑caused pungent fumes and material oxidation risk, suitable for surface treatment of heat‑sensitive articles that cannot withstand high‑temperature sterilisation processes.
- Stepless‑speed adjustable teflon mesh conveyor system
Heat‑resistant, corrosion‑proof teflon mesh belt delivers smooth material transit. Conveying speed can be infinitely tuned from 0‑5 m/min. Operators match belt velocity to article characteristics and required dwell‑time inside UV chamber to balance production throughput and disinfection effectiveness.
- Robust full‑stainless‑steel tunnel cavity & practical mechanical layout
Inner working chamber adopts mirror‑finish stainless‑steel sheet to enhance UV‑light reflection efficiency. Outer frame uses heavy‑duty steel plates. Mobile lockable casters plus levelling feet facilitate workshop re‑positioning and horizontal installation. Hinged top cover allows easy access for lamp replacement and interior deep‑cleaning. Integrated forced‑exhaust fan handles minor heat build‑up inside closed tunnel housing.
- Complete multi‑layer electrical safety protection
Built‑in over‑voltage, over‑current and overload interlock safeguards. Fault‑alert function triggers prompt warning signal upon abnormal operating status. Centralised control panel consolidates main‑switch, speed‑regulator, ammeter and lamp‑group control buttons for straightforward on‑site operation.

Complete Technical Parameter Table
| Parameter Item |
KR‑2504 Standard Specification |
| Total Machine Overall Length |
2000 mm |
| Effective UV Sterilisation Working Zone |
1000 mm |
| Feeding Section Length |
400 mm |
| Discharge Section Length |
400 mm |
| Inlet‑Outlet Passage Height |
200 mm (adjustable) |
| Inlet‑Outlet Passage Width |
700 mm |
| Conveyor‑Belt Ground Clearance |
750 ± 50 mm |
| UV Germicidal Lamp Configuration |
16 × 40 W Osram UVC tubes; lamp height adjustable:100‑180 mm |
| Mesh‑Belt Conveying Speed |
0‑5 m/min stepless variable speed |
| Total Rated Power |
1.5 kW |
| Conveyor Drive Motor |
800 W |
| Speed‑Governor Power |
500 W |
| Exhaust‑Fan Model |
CY‑125 forced‑ventilation blower |
| Input Power‑Supply |
AC 220V, 50 Hz three‑wire power‑supply |
| Typical Mask Processing Throughput |
≥150 pcs / min |
| Verified Surface Sterilisation Rate |
≥99.9 % |
Compliance Standards: GB 4789.2, GB 4789.3, GB 4789.4, GB 4789.5 microbiological testing specifications

Standard Complete Test / Production Operating Workflow
- Pre‑Production Setup
Place sterilisation tunnel on flat solid workshop floor, adjust levelling feet and lock mobile casters. Inspect UV lamp condition, conveyor mesh‑belt integrity and exhaust‑fan function. Power‑on main unit. Adjust lamp assembly height according to article dimension. Set appropriate conveyor speed based on target disinfection requirement. Allow UV tubes to complete short warm‑up period.
- Continuous Feeding & UV Sterilisation
Place articles evenly onto feeding‑end mesh belt. Goods are transported steadily into enclosed UV‑irradiation chamber and receive multi‑angle UVC exposure. Microorganisms on article surfaces are inactivated during transit through working zone. Disinfected products exit from discharge end.
- Production‑Process Monitoring
Keep tunnel top‑cover closed during full‑run operation. Avoid direct visual exposure to UV light. Periodically inspect lamp luminous condition. Adjust belt travelling velocity if disinfection outcome requires optimisation.
- Production Batch Completion
Once production batch finishes, stop conveyor‑belt operation. Keep exhaust‑fan running for a short period to dissipate residual heat inside cavity. Power‑off lamp groups first, then cut‑off main power supply.
- Post‑Run Maintenance & Cleaning
Wait for interior components to cool down. Open hinged tunnel cover. Clear off debris and surface dust from mesh belt and inner cavity. Check lamp tube ageing status and replace expired UV tubes on schedule. Inspect electrical‑control‑panel and cable connections.

Wide Industrial Application Scenarios
Disposable‑Mask & PPE Manufacturing Enterprises
Inline surface disinfection for finished non‑woven masks and protective accessories; reduce surface microbial count for finished‑goods before packaging procedure.
Food & Beverage Processing Plants
Surface sterilisation for baked‑goods, packaged snacks, dairy‑product packages and agricultural‑by‑products; extend shelf‑life of finished food articles.
Cosmetic & Personal‑Care Factories
Disinfection treatment for cosmetic containers, packaging shells and accessory components.
Pharmaceutical‑Supply Manufacturers
Surface disinfection for non‑invasive medical consumables and outer packaging materials.
Packaging‑Material Processing Workshops
Sterilisation of cartons, plastic pouches and other packaging media.
Third‑Party Contract‑Processing Factories
Provide UV surface‑disinfection subcontract service for multi‑category customer products.

Standard Factory‑Full‑Delivery Kit
- KR‑2504 tunnel‑type UVC ultraviolet sterilisation‑system main‑unit
- Complete set of Osram UVC germicidal lamp tubes (16 × 40 W)
- High‑temperature‑resistant teflon mesh conveyor‑belt assembly
- Forced‑circulation exhaust‑fan unit
- Centralised electrical‑control cabinet with operating‑buttons, ammeter and speed‑regulator
- Levelling foot and lockable mobile‑caster set
- Power‑supply connecting‑cable
- Multilingual printed‑operation‑manual complying with GB 4789‑series microbiological‑standards
- Factory‑issued performance‑inspection‑certificate
Optional spare‑parts & custom‑options: additional replacement UV lamp sets, custom‑tunnel‑dimension modification, special‑width conveyor‑belt, custom‑voltage power‑supply‑adaptation.

Global Distributor & After‑Sales‑Support
We deliver remote‑one‑on‑one operational guidance covering conveyor‑speed‑setting, lamp‑height‑adjustment, UV‑tube‑replacement and daily equipment‑maintenance routines. Spare‑parts stock includes germicidal‑UV‑tubes, teflon mesh‑belt accessories and electrical‑control‑components. Bulk‑order customers can apply for custom‑power‑supply‑voltage variants for overseas‑market deployment. Regional‑exclusive‑agent privileges contain priority‑production‑scheduling, OEM private‑branding‑services and complete‑set high‑definition product‑marketing‑image‑resources.
Product‑Banner‑Marketing‑Slogan
KR‑2504 Tunnel‑Type UVC Ultraviolet Sterilisation‑System | GB4789‑Compliant Continuous‑Inline Surface‑Disinfection Machine For Mask‑Food‑Cosmetic‑Packaging‑Production‑Line‑Processing
Core‑Feature‑Labels‑For‑Product‑Images
Osram‑UVC‑Germicidal‑Lamps | 360‑Degree‑Multi‑Direction‑Irradiation | Ozone‑Free‑Low‑Temp‑Physical‑Sterilisation | ≥99.9%‑Surface‑Disinfection‑Rate | 0‑5m/min‑Stepless‑Speed‑Teflon‑Mesh‑Belt | Lamp‑Height‑Adjustable‑100‑180mm | Mirror‑Stainless‑Steel‑Inner‑Cavity | Forced‑Exhaust‑Heat‑Dissipation | Over‑Voltage‑Over‑Current‑Safety‑Protection | Continuous‑Inline‑Production‑Integration | Mobile‑Lockable‑Caster‑Base | Mask‑Food‑Cosmetic‑Medical‑Packaging‑Disinfection‑Solution
Safety‑Operation‑Reminder
Never open tunnel cover while UV lamps are illuminated; UVC radiation will cause injury to human eyes and skin. Operators must wear UV‑shielding protective goggles if inspection under lamp‑on condition is required. This equipment only acts on exposed article surfaces and cannot penetrate solid material for internal sterilisation. Replace UV tubes upon reaching rated service‑life. Reliable protective‑grounding must be completed before power‑on.