Tie bars are the most vital part of the working injection moulding machine and often the most neglected – don’t let a tie bar failure stop your production.

A complete clamp service and maintenance routine should be incorporated into your annual maintenance schedule, as this will prolong your machine's life. This will not only avoid unnecessary costs but also ensure smooth production, maximum productivity, and continuous delivery of quality products.

With a little proactive planning and an annual maintenance plan, many injection moulding machine breakdowns, including issues related to and failures of tie bars, can be avoided.

At IMM Projects, we can help you create a 12-month plan for all your machines and perform comprehensive services and maintenance inspections for you. We start with an initial consultation and complete a broad checklist to assess a machine's level, lubrication, bushing, tie bars, robots, plate movement and much more. Plus, as part of our service, we'll remind you before your machine's next stress test is due, so it's one less thing for you to think about.

A complete clamp service and maintenance routine should be incorporated into your annual maintenance schedule, as this will prolong your machine's life. This will not only avoid unnecessary costs but also ensure smooth production, maximum productivity, and continuous delivery of quality products.

With a little proactive planning and an annual maintenance plan, many injection moulding machine breakdowns, including issues related to and failures of tie bars, can be avoided.

At IMM Projects, we can help you create a 12-month plan for all your machines and perform comprehensive services and maintenance inspections for you. We start with an initial consultation and complete a broad checklist to assess a machine's level, lubrication, bushing, tie bars, robots, plate movement and much more. Plus, as part of our service, we'll remind you before your machine's next stress test is due, so it's one less thing for you to think about.

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We use Gefran Sensormate strain sensor technology gauges to perform the tie bar strain test on each tie bar.

What our tie bar stress test measuring service comprises:

  • We first visually inspect the clamping unit to identify any apparent concerns.
  • We next perform crucial level checks.
  • Should the machine pass these checks, we will place strain sensors on each tie rod. These are linked to a device that calculates the strain measurement of each tie bar.
  • We re-perform the stress test several times, and readings are accumulated—this is the most effective way of ensuring the most accurate results.
  • We will analyse the detailed report and share a copy with you within two to three days.
  • We will recommend any adjustments if they are required.
  • Please note: in order to perform our stress test service, a tool that can run maximum tonnage in the relevant machine is required at the premises.

What our tie bar stress test measuring service comprises:

  • We first visually inspect the clamping unit to identify any apparent concerns.
  • We next perform crucial level checks.
  • Should the machine pass these checks, we will place strain sensors on each tie rod. These are linked to a device that calculates the strain measurement of each tie bar.
  • We re-perform the stress test several times, and readings are accumulated—this is the most effective way of ensuring the most accurate results.
  • We will analyse the detailed report and share a copy with you within two to three days.
  • We will recommend any adjustments if they are required.
  • Please note: in order to perform our stress test service, a tool that can run maximum tonnage in the relevant machine is required at the premises.

What are the most common causes of a premature tie bar failure?

Moulds – off-centre, off-centre tonnage requirement, too small for the machine, uneven wear, uneven mould bolting, over-clamping, hot runner moulds without an insulator plate

Platens – not parallel, excessive concavity, cracked, excessive stoning, travel is not perpendicular to platen surface

Machine – poor initial construction, poor or uneven lubrication, not level, not properly supported, too much unsupported weight on the movable side, twisted machine base

What our tie bar stress test measuring service comprises:

  • We first visually inspect the clamping unit to identify any apparent concerns.
  • We next perform crucial level checks.
  • Should the machine pass these checks, we will place strain sensors on each tie rod. These are linked to a device that calculates the strain measurement of each tie bar.
  • We re-perform the stress test several times, and readings are accumulated—this is the most effective way of ensuring the most accurate results.
  • We will analyse the detailed report and share a copy with you within two to three days.
  • We will recommend any adjustments if they are required.
  • Please note: in order to perform our stress test service, a tool that can run maximum tonnage in the relevant machine is required at the premises.

What are the most common causes of a premature tie bar failure?

Moulds – off-centre, off-centre tonnage requirement, too small for the machine, uneven wear, uneven mould bolting, over-clamping, hot runner moulds without an insulator plate

Platens – not parallel, excessive concavity, cracked, excessive stoning, travel is not perpendicular to platen surface

Machine – poor initial construction, poor or uneven lubrication, not level, not properly supported, too much unsupported weight on the movable side, twisted machine base

What conditions should you be meeting to ensure tie bar longevity?

Tie bars – are level, are parallel, do not get too hot, the force is applied evenly across all tie bars

Moulds – properly sized and centred, travels perpendicular to the platen surface

Machine – properly levelled and supported, tonnage requirements are balanced, proper lubrication is applied

Don't hope for the best. Maintain your machines to ensure the durability of parts, better control business expenditures, and prevent downtime, which could lead to unhappy customers.
Book a 'tie bar stress test' service today, or let us help you plan a complete annual maintenance routine for your injection moulding machine.

“IMM Projects provides us with an excellent proactive and reactive service to ensure we provide parts to the car industry. Michael is available at any time and supports us and the team with his knowledge and enthusiasm to get the job done.”

Maintenance Manager

A Leading Global Supplier of Automotive Components

“Michael spent three days with us at WMG, University of Warwick, delivering a tailored training course covering the basics of machine settings through to troubleshooting and consultation of the complex electrical and hydraulic drawings. Michael’s overall machine knowledge continues to exceed our expectations and we are grateful for the ongoing support he provides.”

Rachel Weare

Lead Engineer, WMG, University of Warwick

“Our company has used IMM Projects’ component supply services for over a year, and they have always been timely and cost-effective, plus they have great machine knowledge. Michael has assisted us on many occasions when we needed out-of-hours support and has been to our Romanian and French plants to assist with Engel repairs. It is always a pleasure!”

Technical Director

Tier 1 Global Automotive Supplier

Injection Moulding Machine Brands

We undertake maintenance, obtain parts and provide training on the following Injection Moulding Machine brands

Arburg
Beston
Demag
Engel
Gefran
Krauss Maffei
Piovan
Shini
Arburg
Beston
Demag
Engel
Gefran
Krauss Maffei
Piovan
Shini
Arburg
Beston
Demag
Engel
Gefran
Krauss Maffei
Piovan
Shini
Arburg
Beston
Demag
Engel
Gefran
Krauss Maffei
Piovan
Shini
Arburg
Beston
Demag
Engel
Gefran
Krauss Maffei
Piovan
Shini
Arburg
Beston
Demag
Engel
Gefran
Krauss Maffei
Piovan
Shini
Arburg
Beston
Demag
Engel
Gefran
Krauss Maffei
Piovan
Shini
Arburg
Beston
Demag
Engel
Gefran
Krauss Maffei
Piovan
Shini
Arburg
Beston
Demag
Engel
Gefran
Krauss Maffei
Piovan
Shini
Arburg
Beston
Demag
Engel
Gefran
Krauss Maffei
Piovan
Shini
Arburg
Beston
Demag
Engel
Gefran
Krauss Maffei
Piovan
Shini