Splicer Machine for Corrugating Lines: Types, Selection, and Operation

The splicer is a critical component on every corrugator mill roll stand, enabling paper roll changes without stopping the production line. Splicer performance directly affects line uptime, paper break frequency, and waste generation. A well-maintained splicer achieving 98%+ splice success rate can save 30-60 minutes of downtime per shift compared to manual roll changes.

Why Splicers Matter

Corrugator runs 3-8 paper rolls simultaneously (liner, medium, additional plies)

Each roll lasts 30-120 minutes depending on diameter and line speed

Manual roll change requires stopping the line: 5-15 minutes per change

At 150 m/min, each stop wastes 750-2,250 meters of board in process

Automatic splicer enables roll change in 30-60 seconds at full line speed

On a 16-hour shift at 150 m/min: 15-30 roll changes per line position

Splicer Types

Zero-Speed Splicer (Static Splice)

Line stops briefly (30-90 seconds) for splice cycle

Old roll decelerates to zero, new roll spliced, line restarts

Simpler mechanism — lower cost and easier maintenance

Splice success rate: 95-98% when properly maintained

Suitable for lines up to 150 m/min

Cost: $15,000-40,000 per position

Best for: Small and mid-scale plants, lines below 150 m/min, budget-conscious investments

Flying Splice (Non-Stop Splice)

Roll change at full line speed — no production interruption

New roll accelerates to match line speed before splice

Vacuum belt or roller system transfers web from old to new roll

Splice success rate: 97-99.5% on well-maintained systems

Required for lines above 180 m/min where stop time is too costly

Cost: $40,000-100,000 per position

Best for: High-speed lines, large production volumes, minimum waste priority

Automatic vs Manual Splicer

Manual: Operator prepares splice tape and tail by hand — line must stop

Semi-automatic: Machine applies tape and cuts tail; operator loads new roll

Fully automatic: Machine detects roll diameter, loads from standby position, splices automatically

Fully automatic reduces operator workload and splice preparation time by 70%

Splicer Components

Roll stand: Supports running roll and standby roll (2-position or 3-position)

Brake system: Controls running roll tension during splice

Splice table: Platform where old and new tails are joined

Tape applicator: Applies double-sided splice tape to new roll tail

Cutting system: Cuts old roll web after splice transfer

Vacuum system (flying splice): Transfers web at speed without wrinkles

Control system: PLC or mechanical cam controlling splice sequence

Diameter sensor: Detects when running roll reaches splice trigger diameter

Splice Preparation and Operation

Splice Tape Selection

Standard splice tape: Suitable up to 120 m/min

High-speed splice tape: Required above 150 m/min — stronger adhesive, thinner profile

Tape width: Match or exceed full paper web width

Overlap length: 50-80 mm for liner, 40-60 mm for medium

Storage: Keep tape in sealed container — humidity degrades adhesive

Splice Preparation Procedure

1. When roll reaches splice diameter (typically 400-600 mm remaining), initiate splice sequence

2. Prepare new roll tail: Cut square, remove damaged outer layers (2-3 wraps)

3. Apply splice tape to new roll tail — full width, smooth without wrinkles

4. Position new roll on standby station, align with running web path

5. Automatic cycle: Brake old roll, splice, cut, accelerate new roll

6. Verify splice success: Check for wrinkle, misalignment, or weak joint

7. Remove spent core from old roll position

Splice Quality Criteria

Overlap aligned within 2 mm across full web width

No wrinkles or folds in splice area

Tape fully bonded — no edge lifting

Web tension restored within 10 meters of splice point

No paper break at splice during subsequent production

Selection Criteria

Match Splicer to Line Speed

Below 120 m/min: Zero-speed splicer adequate

120-180 m/min: Zero-speed with high-speed tape, or flying splice recommended

Above 180 m/min: Flying splice mandatory for economic operation

Above 250 m/min: Fully automatic flying splice with diameter sensing required

Match Splicer to Paper Grades

Lightweight medium (below 120 gsm): Requires gentle handling — vacuum flying splice preferred

Heavy liner (above 200 gsm): Standard splicer adequate for most weights

Recycled grades: More prone to splice failure — invest in higher-quality splicer

Number of Positions

3-ply line: 3 splicers minimum (2 liner, 1 medium)

5-ply line: 5 splicers (3 liner, 2 medium)

Budget approach: Flying splice on liner positions only, zero-speed on medium

Optimal: Flying splice on all positions for lines above 150 m/min

Maintenance and Troubleshooting

Daily Maintenance

Inspect splice tape applicator for adhesive buildup

Check vacuum belt condition (flying splice) — no cracks or glazing

Verify brake function and tension calibration

Clean splice table surface

Weekly Maintenance

Inspect and replace splice blades if edge quality degrades

Check vacuum pump performance and filter condition

Lubricate bearing points and cam mechanisms

Test splice cycle manually at reduced speed

Monthly Maintenance

Calibrate diameter sensor trigger point

Inspect roll stand alignment and web path

Check pneumatic cylinder operation and seal condition

Review splice failure log — identify patterns by position or operator

Common Splice Failures

Paper break at splice: Weak tape, misaligned tail, or excessive brake tension during splice

Wrinkle at splice: New roll misaligned, vacuum insufficient, or tail not square

Splice opens during production: Tape adhesive degraded, overlap too short, or contaminated surface

Double thickness causing jam: Old roll not cut cleanly, or splice overlap too long

Impact on Paper Break Prevention

Poor splicer performance is the second leading cause of paper breaks after tension problems. See our corrugator paper break causes and solutions guide for full diagnostic procedures. Investing in reliable splicers and maintaining splice success above 98% is one of the highest-ROI improvements for corrugator uptime.

Xuegong corrugating lines include splicer specifications matched to line speed and paper grade requirements. Contact us for splicer selection recommendations for your production configuration.