DWI FRONT END

Line and machine control sensors, test and inspection systems, and measurement gauges for the first stage ('front end') of the 2-piece canmaking process

Canline
Sensors

Sencon canline sensors are the most widely used in the world, designed for the challenges of beverage and food canmaking lines, ensuring long life, precise performance and less downtime.

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Can Count
Sensors

Precise monitoring of production and/or spoilage data with count accuracies of 30 per 1,000,000 or better. Unidirectional SMART sensing detects flow direction preventing miscounting.

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Linear Mass
Sensors

Unique and versatile sensors offering smooth, precise, self-correcting speed control right down the line. A revolution for canmaking line speed control.

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Area Mass
Sensors

Unique and versatile sensors offering smooth, precise, self-correcting speed control on mass belts.

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Die Protection
Cup Drop Sensors

These unique Die Protection Sensors are custom designed to detect reliably and efficiently that all cups have dropped and cleared the die area in the cupping press.

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Short Can
Sensors

Specialized metal discrimination sensors that protect expensive tooling in beverage can bodymakers from damage due to tear-offs.

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High performance
Sensors

These High Performance Sensors are ideal for highly demanding control applications in can making machines such as bodymakers, printers, spray machines, and neckers.

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Front End
(Trimmed Can) Gauge

The Master Series™ fully automatic front end gauge takes measurements of key dimensions on front end trimmed and un-necked beverage cans.

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FRONT END
(TRIMMED CAN) GAUGE

The Benchmark™ semi-automatic front end gauge takes measurements of key dimensions on front end trimmed and un-necked beverage cans.

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DWI Coating & Decorating Process

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DWI Back End Process

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2-PIECE CAN
MANUFACTURING

Two-piece can forming using the DWI (drawn and wall ironed) method was invented in the United States in 1958. A DWI can is formed from aluminum or steel, which is drawn into a cup shape at the cupper before being "wall-ironed". This is carried out with a high speed ram and punch that pushes metal cups through a series of forming rings which stretch the side wall material and creates the domed base of the can against shaped tooling at the end of the bodymaker. After trimming to the correct side wall height, cans go through a washer before heading to the coater/printer where the external print designs are added with an overvarnish. The cans then travel though a curing oven mounted on a pin chain before an internal coating is applied for protection of the contents. After baking in another oven to cure the internal coating, the cans go through the necker where the top is narrowed and a flange is added.

DWI cans are mainly used for beer and carbonated soft drinks (CSD) and for some aerosol products. The can bottom is dome-shaped to withstand internal pressure, often with an added reform groove for additional strength. The can forming method uses the advantage of metal ductility to enable the sidewall to be just 0.1 mm thin, with the can weight being much lighter than typical 3-piece cans. DWI beverage cans come in many standard sizes of diameter and sidewall height with a variety of end/lid style options.

Sencon supports the canmaking process with line and machine control sensors, test and ispection equipment for monitoring the process, and a full range of gauges for measuring and quality control.

PRODUCT NEWS

FLOW CONTROL PROBLEM SOLVERS

Maintaining the flow of a 2-piece canmaking production line requires precise coordination between machines and line controls to reduce backups and smooth out production flows.

2 PROBE OR NOT 2 PROBE? WHAT'S THE ANSWER?

The question of how many side wall probes you should have on a Sencon Front End Gauge is simply down to what’s most important to you – speed or flexibility.

GUIDE TO SPECIFYING CANLINE SENSORS

Specifying line control sensors for a whole production line is a significant investment. This guide will help you make an informed choice between generic inductive sensors and dedicated can line sensors.

ADDING DATA SAVING CAPABILITY TO GAUGES THAT USE SERIAL PORTS

Sencon's SX1000 Data-Bridge Software adds data logging functionality to gauges with only an RS232 serial interface.

WORLDWIDE SERVICE AND SUPPORT YOU CAN TRUST

With service engineers based in North and South America, Europe and Asia, backed up by support from our experienced industry specialists at three technical support centers, you can trust Sencon for support, accredited calibration and after-sales service.