Consulting and equipment selection

An experienced second opinion before you buy, build or start up

Consulting on extrusion processes and equipment, help with vendor selection and purchasing negotiations, and on-site project management for expansions, installations and start-ups.

Crosshead and tooling on a wire and cable extrusion line

What GBET takes on

With continuous extrusion, success depends on far more than the extruder. Auxiliary equipment, tooling, raw materials, equipment condition, operating practices and the skill of the people running the process all shape productivity and quality.

Process consulting

A review of how the process is run today, what limits it and what can realistically change.

Equipment evaluation

An assessment of the extruder, tooling and downstream equipment you already own, and of what condition it is in.

Equipment selection

Matching extruder size, screw, tooling and downstream equipment to the products and volumes you need to make.

Vendor selection and negotiation

Help comparing suppliers and quotations, and support through purchasing negotiations.

Project management

On-site support for facility expansions, equipment procurement, major installations and start-up.

Due diligence

For owners and investors entering extrusion: what the product demands, what the equipment costs and what it takes to run it.

A second opinion costs less than a line that is down

Published surveys put a number on what plants already know. Siemens estimates that unplanned downtime costs the world’s 500 biggest companies almost $1.4 trillion a year, about 11% of their revenues. An ABB survey of more than 3,200 plant maintenance leaders found a typical industrial business loses close to $125,000 for every hour it is down.

Most extrusion downtime traces back to something that could have been seen earlier: a worn screw, tooling that was never right for the material, a dryer that is not drying, a start-up practice that differs by shift.

Unplanned downtime at an average large plantHours lost per month
  • 39 hrs
  • 27 hrs

Source: Siemens, The True Cost of Downtime 2024. Plants are improving, but every lost hour now costs more.

What an equipment evaluation looks at

Findings are reported in plain language, with a status against each area so that priorities are obvious. The table below is an illustration of the format, not a real report.

Illustrative equipment evaluation summary
AreaWhat gets checkedExample findingStatus
Screw and barrelOutput against screw speed, melt temperature trend, black specks, surging, flight clearance where it can be measuredOutput has fallen at the same screw speed and melt temperature has crept up, both signs of wearWatch
Temperature controlZone setpoints against actual readings, thermocouple condition, real melt temperatureZones hold setpoint. Melt temperature is driven mainly by screw shear, as expectedIn good order
ToolingTip and die selection, land length, draw-down ratio and draw balance for the material being runDie gap and land length restrict the material. Tool set should be changedAct
Feed and dryingHopper feed stability, feed throat temperature, dryer dew point and residence timeMoisture-sensitive resin is under-dried on long runsAct
DownstreamCooling, sizing, puller or capstan control, gauging, take-upGauges are in place and trended, cooling is adequate for current line speedIn good order
PracticeStart-up, purge and changeover routines, and whether every shift follows the same onesStart-up settings differ between shiftsWatch

Buying a line: where an outside view helps

Equipment decisions are hard to reverse. GBET stays involved from the first specification to the first good product.

1

Define the product

Materials, dimensions, tolerances, line speeds and volumes, and how they may change over the life of the line.

2

Specify the equipment

Extruder size and screw, tooling, cooling and sizing, gauging, pulling and take-up, matched to the product.

3

Compare and negotiate

Vendor quotations compared on what matters for your product, with support through purchasing negotiations.

4

Install and start up

Project management on site, start-up of the line and training for the people who will run it.

Thermoplastic pellets held in an open hand

New to extrusion?

Several of GBET’s recent customers have been entrepreneurs looking at wire and cable manufacturing for the first time. Before any equipment is ordered, due diligence answers the questions that decide whether the plan works.

Consulting and equipment questions

Before the specification is fixed. It is far cheaper to change a screw design or a tooling choice on paper than after the line is installed. That said, plenty of work starts with a line that is already running badly.

Yes. Equipment evaluation covers the extruder, tooling and downstream equipment, and the practices used to run them. The aim is to separate what must be fixed from what can be managed as it is.

Yes. GBET assists with vendor selection and with purchasing negotiations, so that what you buy matches the product you need to make.

Yes. On-site project management covers facility expansions, equipment procurement and major installations, through to start-up.

The usual signs are falling output at the same screw speed, rising melt temperature, black specks and surging. One common rule of thumb puts the cut-off for replacing a screw at a flight clearance of about four times the original tolerance, depending on the resin.

Every project starts with a conversation.

Tell us what the line is doing, what it should be doing, and what cannot change. You will get a plain answer on whether training, tooling, equipment or process work is the right place to start.