KR‑435 Four‑Color Gravure & Flexographic Ink Proofing Machine
ISO 8791 Ink Proofer Machine Offset Printing Flexo Ink Proofing Machine
1. Motorized automatic leveling (leveling time can be adjusted).
2. Printing pressure: -1~+1MM manual adjustment.
3. Uniform ink speed can be frequency conversion speed 0-1000 rpm.
4. Color spreading speed can be adjusted by frequency conversion, 0-30rpm.
5. Printing roller width: 225MM.
6. Color bar effective area: 45MMX210 MM (4 bars)
7. Rubber roller: Germany imported rubber (VU70)
8. Inverter: Taiwan Delta DELTA
Product Details：
Product Overview
The KR‑435 desktop multi‑color ink proofing instrument is lab‑scale pre‑press test equipment for gravure and flexographic printing workflows. It simulates real‑production press conditions to generate standardized color‑bar samples, enabling visual assessment of ink hue, tinting performance, print smoothness and substrate‑ink compatibility.
This unit shortens pre‑production color‑matching cycles and reduces waste of paper, ink and consumables caused by repeated trial‑runs on large production presses. Equipped with imported rubber roller assembly and Delta frequency‑conversion drive system, it supports quick generation of four‑parallel color strips. Widely adopted by printing & packaging factories, ink manufacturers, R&D labs and educational institutions for ink formula screening, incoming‑material inspection and spot‑color verification.
Core Product Competitive Advantages
- Stable Automatic Ink‑Mixing System Motor‑driven automatic ink homogenisation with configurable mixing duration. Operators can switch freely between manual and auto ink‑spreading modes to accommodate diverse ink viscosity properties and different operating habits.
- High‑Precision Adjustable Printing Pressure Printing pressure can be finely tuned within ‑1 mm ~ +1 mm range. Users adjust compression clearance according to substrate thickness (paper, film etc.), ensuring consistent ink transfer effect for thin or thick printing stock.
- Dual‑Range Frequency‑Conversion Speed Regulation ‑ Ink‑distribution speed: 0‑1000 rpm continuous variable; three fixed‑gear presets (400 / 550 / 700 rpm) for rapid recall. ‑ Proofing color‑bar output speed: 0‑30 rpm variable, with 10 /15 /20 rpm fixed‑speed options. Speed parameters can be matched against ink viscosity and substrate soft‑hard characteristics.
- Premium Imported Roller Hardware Adopts Germany‑made VU70 rubber impression roller, identical material to rollers used on industrial production presses. Standard rubber roller and UV‑resistant roller are interchangeable, supporting testing for conventional solvent‑based ink as well as UV curing ink. Taiwan Delta inverter delivers steady rotation with minimal speed fluctuation.
- User‑Friendly Cabinet‑Type Bench‑Top Layout Touch‑screen human‑machine interface for parameter setting. Emergency‑stop button is fitted for safe intervention. Main body is built with stainless‑steel panels, resistant to solvent splashes and easy to wipe clean after proofing cycles. Compact footprint fits ordinary laboratory workbenches.
Complete Technical Parameter Table
表格
| Parameter Item | KR‑435 Standard Specification |
|---|---|
| Ink‑Mixing Mode | Motor‑driven automatic mixing, mixing‑time adjustable |
| Printing Pressure Adjustment Range | ‑1 mm ~ +1 mm manual fine‑tuning |
| Ink‑Distribution Speed | 0‑1000 rpm frequency‑conversion adjustable; fixed gears: 400 / 550 / 700 rpm |
| Proofing Color‑Bar Speed | 0‑30 rpm frequency‑conversion adjustable; fixed gears:10 /15 /20 rpm |
| Max Roller Working Width | 225 mm |
| Effective Color‑Bar Area | 45 mm × 210 mm (4 parallel color strips) |
| Rubber Roller | Germany imported VU70 rubber; standard / UV‑type interchangeable |
| Drive Inverter | Taiwan Delta |
| Control Interface | Touch‑screen HMI |
| Machine Net Weight | 75 KG; 82 KG after export‑packaging |
| Recommended Working Environment | Temperature: 20±10 ℃ |
Standard Complete Test Operating Workflow
- Pre‑Test Preparation Place unit on level workbench. Check roller surface cleanliness. Load target gravure / flexo ink, install corresponding roller according to ink type (ordinary or UV ink). Power‑on and access touch‑screen control menu.
- Parameter Configuration Set ink‑mixing duration, ink‑distribution speed, proofing output speed and printing pressure based on ink viscosity and substrate thickness. Mount printing substrate onto the sample holder.
- Automatic Ink Homogenisation Start auto‑mixing procedure to achieve uniform ink dispersion. After mixing completes, the machine proceeds to ink transfer and color‑bar proofing process.
- Color‑Bar Sample Generation The roller assembly runs at preset speed to transfer ink onto substrate, outputting four‑channel standard color strips. Once proofing finishes, lift the roller assembly and retrieve printed sample sheet.
- Post‑Test Cleaning & Shutdown Remove residual ink from rollers and metal surfaces with suitable cleaning solvent. Wipe and dry all roller components. Cut off main power after completing batch proofing tasks.
Wide Industrial Application Scenarios
Printing & Packaging Manufacturing Plants
Pre‑press spot‑color matching for gravure and flexo jobs; evaluate ink rendering performance before launching large‑scale production, lower raw‑material loss.
Ink Production Enterprises
New ink‑formula development and comparison testing; quality inspection for finished ink products before factory delivery.
Flexible‑Packaging Material Factories
Compatibility verification between different ink batches and packaging substrates (paper, plastic composite film etc).
University & Printing‑Technology Research Institutes
Teaching‑experiment equipment for graphic‑arts majors; lab research for printing‑ink and pre‑press technology.
Third‑Party Printing‑Quality‑Testing‑Organizations
Carry‑out printability assessment for various printing‑ink samples for compliance‑verification projects.
Standard Factory‑Full‑Delivery Kit
- KR‑435 gravure‑flexo four‑color ink‑proofing‑machine main‑unit
- Standard Germany‑made VU70 rubber roller assembly
- Touch‑screen human‑machine control system
- Machine leveling foot assemblies
- Multilingual printed‑operation‑manual
- Factory‑issued performance‑inspection‑certificate
Global Distributor & After‑Sales‑Support
We provide remote‑operational guidance covering speed‑pressure parameter setting, roller replacement and solvent‑cleaning workflows. Spare‑parts stock includes standard rubber rollers, UV‑special rollers, Delta inverter modules. Bulk‑order customers can request custom‑width roller variants. 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‑435 Four‑Color Gravure‑Flexo Ink Proofing Machine | Desktop Pre‑Press Lab Proofer For Spot‑Color Matching & Ink‑Printability Evaluation
Core‑Feature‑Labels‑For‑Product‑Images
Auto Ink‑Mixing Function | ‑1~+1mm Precision Pressure Adjustment | Delta Frequency‑Conversion Drive | Imported VU70 Rubber Roller | Standard / UV‑Roller Interchangeable | Multi‑Gear Speed Presets | Touch‑Screen Control | Solvent‑Resistant Easy‑Clean Structure
Safety‑Operation‑Reminder
Do not touch rotating roller assemblies during machine operation. Use suitable solvent for cleaning, ensure good ventilation in working area. Activate emergency‑stop button immediately if abnormal mechanical noise occurs.
Build Your Market with DGKAREY
KAREY products are trusted by customers across more than 100 countries, supporting long-term business growth in the testing equipment industry.
We are now seeking reliable partners to represent our brand in their local markets.
As an authorized distributor, you will receive dedicated regional support, ensuring a stable and protected business environment.
Your orders will be handled with priority, and our team will assist you with tailored equipment solutions based on your market needs.
From initial cooperation to ongoing development, we work closely with you to strengthen your presence and competitiveness.
DGKAREY – Your Reliable Partner in Global Supply
We go beyond supplying testing equipment. Our team manages the full journey — from export procedures to delivery at your door — ensuring efficiency, transparency, and peace of mind.
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