Sales and Support: +8617736472555
  • twitter
  • facebook (1)
  • Youtube (35)
Leave your message

How to Choose the Right Flexo Printing Slotter Machine?

An Expert Guide to Selecting High-Performance Corrugated Carton Manufacturing Lines for Modern Packaging Factories

Cangzhou Baikuo Carton Machinery Co., Ltd.

Your Trusted Partner in Global Corrugated Packaging Solutions Direct from Dongguang County

Dongguang County, Hebei Province is the world's largest and most complete corrugated carton machinery production base, with a 30-year industrial history and supplying 70% of the world's carton machinery.

Baikuo Pack is one of the few manufacturers here that owns three independent factories: corrugated production line factory, flexo printing machine factory and folder gluer stitcher machine factory. We have a complete production system from raw material processing, parts manufacturing, assembly testing to after-sales service.

Unlike trading companies who buy machines from different factories and resell them, all our machines are 100% manufactured in our own factories. This allows us to offer unmatched advantages in quality control and pricing structure.

Why Choose Factory Direct?

  • Lower Direct Factory Prices (No middlemen markups or trading fees)
  • Strict & Unified Quality Control (Every processing step monitored in-house)
  • Faster Delivery Times (Optimized and synchronized production scheduling)
  • One-Stop After-Sales Service (Direct access to original engineers and spare parts)
3
Independent Factories
30+
Years of Industry History
70%
Global Base Market Share
100%
In-House Manufacturing

Key Criteria for Choosing the Right Flexo Printing Slotter

Maximize your return on investment by evaluating your production needs against machine specifications.

Production Volume & Speed

Determine your daily output requirements. High-speed systems like our 924 line run up to 260 m/min, ideal for high-volume factories, while entry-level models suit small batch runs.

Flute & Cardboard Types

Ensure the machine supports your flute specifications. Our lines process A, B, C, E, F flutes and multi-wall combinations (e.g., A/B, B/C, A/B/C) up to 13mm thick.

Automation & Setup Time

Look for PLC/servo-driven touch screen controls (e.g., Delta/Siemens). Features like "one-key order change" drastically minimize setup times between jobs.

924 Flexo Printing, Gluing and Strapping Line

Explore the complete technical blueprint and structural configurations of our flagship inline system.

924 Flexo Printing Gluing and Strapping Line Overview
Technical Parameter Specification Detail (Model 924)
Machine Description Full-Process Vacuum Transfer 4-Color Flexo Printer Slotter Die-Cutter
Line Composition 7 Units: 1 Feeding Unit, 4 Printing Units, 1 Slotting Unit, 1 Die-Cutting Unit
Max Sheet Feeding Area 900 x 2400 mm
Skip Feeding Size 1100 x 2400 mm
Min Sheet Feeding Area 260 x 550 mm
Max Printing Area 900 x 2400 mm
Design Speed 260 m/min
Applicable Cardboard A, B, C, E, A/B, B/C, A/B/C (Max thickness: 13mm)
Printing Plate Thickness 4.8 - 7.2 mm (including backing)
Wallboard Thickness 60 mm high-grade cast iron
Total Weight / Power Approx. 25,000 KG / 90 KW
Control Systems DELTA (Taiwan) PLC, Inverter, Touch Screen / SIEMENS Electricals
Drive Gears 20CrMnTi Alloy Steel, Hardness HRC 60-65

Engineering Precision & Manufacturing Process

How Cangzhou Baikuo ensures long-term accuracy and structural durability of our carton machinery.

Unit Structure & Lubrication

The entire machine utilizes large helix angle helical gears. This design reduces noise, increases gear contact ratio, and guarantees smooth transmission accuracy. All drive gears are manufactured from 20CrMnTi alloy steel, precision ground, case-hardened, and lubricated via a closed spray system with oil level balance regulators.

For safety, units lock pneumatically with master locking devices. The main motor cannot start if the units are unlocked. Conversely, units cannot unlock while the main motor is running. Zero-positioning systems reduce cardboard waste during job setups.

Component Treatment Processes

  • Side Wallboards: Cast iron → Artificial aging → Rough planing → Fine planing → CNC machining center processing → Inspection.
  • Gears: Forging → Rough turning → Quenching & Tempering → Gear hobbing → Heat treatment → Grinding → High-precision gear grinding → Testing.
  • Rollers & Shafts: Pipe boring → Rough turning → Static balance → Annealing → Fine turning → Dynamic balance → Grinding → Hard chrome plating.

Advanced Feeding Unit: Non-Crush Lead Edge System

Ensure precise sheet registration without damaging the structural integrity of your corrugated board.

Feeding Unit Section Overview

Our feeding unit features a 3-servo non-crush lead edge feeding system. The three rows of feeding rollers operate independently, enabling tracked feeding that improves speed and registration accuracy. This allows the smooth transport of thin boards as well as E-flute single-wall sheets.

A high-pressure centrifugal fan with frequency-controlled volume adjustment handles warped boards. The side guides are motorized and adjust automatically via PLC input. A brush and blower dust removal system eliminates debris on the cardboard surface to optimize print quality.

Servo Lead Edge Feed Detail
Feeding Unit Feature 1Feeding Unit Feature 2
Rear view of Lead Edge Feeding Unit

Vacuum Transfer Printing Unit

Achieve high-precision multi-color registration with dynamic suction boxes and ceramic anilox rolls.

Printing Unit Overview

Printing Rollers & Phases

  • Anilox Rollers: Standard configuration features ceramic anilox rollers (LPI ranges from 220 to 280) paired with high-quality rubber rollers.
  • Vacuum Transfer: Cardboard moves on wear-resistant ceramic-coated aluminum alloy wheels, preventing slipping and maintaining register within ±0.5mm.
  • Servo Phase Adjustment: Siemens/Delta servo-controlled planetary gear structures allow 360-degree rotation adjustments during operation.
  • Plate Cleaning Memory: The machine remembers the original print position, automatically returning to it after plate washing.
Vacuum Transfer Box Detail

The dynamic vacuum transfer box features segmented dampers that automatically adjust the suction area according to the width of the cardboard sheet, saving energy and stabilizing transport.

Slotting & Die-Cutting Units

Combining heavy-duty mechanical design with digital controls for precise carton shaping.

Slotting Unit Overview

Eight-Shaft Double Creaser Slotting Unit

Equipped with a 4+1 knife configuration (4 slotting blades, 1 corner cutting blade) and double-creasing wheels. The creasing wheels are covered in imported polyurethane to prevent scoring or rupturing the liner board. All gap adjustments are motorized with digital readouts on the 7-inch touch screen interface.

Slotting Blade DetailCreasing Wheel DetailSlotting Shaft Detail
Die Cutting Unit Overview

Precision Die-Cutting Unit

Features an independent servo drive to prevent print ghosting. The anvil roller moves axially by ±50mm to distribute wear across the German Depar polyurethane covers. A speed compensation system matches the anvil roller speed to the die cylinder, ensuring cutting accuracy even after the polyurethane covers are trimmed and thinned.

Creasing & Slotting ControlsSlotting Gearbox Adjustments

Down-Stacking Folder Gluer & Automatic Strapping

Complete your production line with high-speed folding, precise gluing, and automatic bundling.

Folder Gluer Overview

Our folder gluer section features a Siemens PLC control system and a 4.4KW main motor. High-friction belts fold the board, and a stainless steel wheel applies cold glue. The pneumatic diaphragm pump keeps glue circulating to prevent drying or misses. The down-stacking counter ejector uses servo control to prevent scuffing on printed or laminated surfaces.

Counter Ejector Detail

The down-stacking unit counts and bundles cartons in batches of 5 to 30 sheets. Squaring plates correct fish-tailing before outputting the bundle to the strapping machine.

Gluer details 1Gluer details 2Folding section guideCounter ejector servo drive

PP Fully Automatic Packaging (Strapping) Machine

PP Fully Automatic Packaging Machine
Packaging Machine Parameter Specification Detail
Configuration Turnover unit + Squaring unit + Pressurized strapping unit
Production Capacity 9 - 18 bundles / minute
Electrical Power 3-phase AC380V (±10%), 50Hz, 2KW
Applicable PP Band Width 5 mm or 9 mm (Optional)
Tension Strength Adjustable from 0 - 45 KG
Conveyor Speed 0 - 50 m/min (Delta Inverter Control)

Premium Component Configuration & Sourcing

Cangzhou Baikuo uses components from world-class brands to ensure long-term machine reliability.

Component Name Brand / Origin Component Name Brand / Origin
Main Bearings SKF (Sweden) / NSK (Japan) Pneumatic Cylinders Airtac (Taiwan)
PLC Controller Delta (Taiwan) / Siemens (Germany) Inverters / VFDs Schneider (France) / Delta
Main Motors Teco (Taiwan) / Yongshun (China) Servo Motors Siemens (Germany) / Veichi
Contactors & Relays Siemens / Schneider Limit Switches Omron (Japan)
Diaphragm Ink Pumps ARO (USA) Transmission Belts Continental (Germany) / Siegling
Anilox Rollers Haili (Jiangsu) Die-Cutting Covers Depar (Germany)
NSK Bearings

NSK / SKF Bearings

Airtac Cylinder

Airtac Pneumatics

ARO Pump

ARO Diaphragm Pump

Ceramic Anilox Roller

Ceramic Anilox Rollers

Quality Control & Factory Acceptance Testing (FAT)

Our standardized testing parameters ensure the machine meets your production requirements before shipment.

Cardboard Selection Criteria

For accurate testing, the corrugated board must meet standard commercial quality levels. The warp ratio should not exceed 0.015. This ratio represents the height difference across the board width, as detailed below:

Board Width Max Warp Height Warp Coefficient
300 mm 4.5 mm 0.015
600 mm 9.0 mm 0.015
900 mm 12.0 mm 0.015

Acceptance Accuracy Benchmarks

  • Production Speed: The line runs at 60% of design speed for maximum/minimum board sizes, and reaches 80% speed (approx. 200+ m/min) for mid-size sheets.
  • Printing Registration: The first color registers within ±1.0 mm from the lead edge. Subsequent colors register within ±0.5 mm relative to the first color.
  • Slotting Accuracy: Slotting and creasing depth registration maintains a tolerance of ±1.5 mm along the running direction.
  • Die-Cutting Accuracy: Rotary die-cut profiles maintain a tolerance within ±1.0 mm.

Safety Instructions & Maintenance Guidelines

Protect your operators and extend the service life of your machinery with these protocols.

Operator Safety Rules

  • Always verify the surrounding area is clear before moving or locking machine sections.
  • Never operate the control panels with more than one person at a time to prevent accidental activation.
  • Keep all safety guards, interlock switches, and protective screens closed during operation.
  • Disconnect and lock out the main power supply before performing maintenance, roller changes, or cleaning.
  • Avoid opening control cabinets for at least five minutes after power-down to allow internal capacitors to discharge.

Daily & Weekly Maintenance

  • Check oil levels in the gearboxes daily. Ensure the spray lubrication system functions properly.
  • Clean the ink circulation system, diaphragm pumps, and anilox rollers after every shift to prevent ink from drying.
  • Inspect vacuum transfer belts and main drive belts weekly for proper tension and wear.
  • Lubricate guide rails, linear bearings, and lead screws weekly using the specified grease.