GPRM Prestress Selects Dynacore for Upgrade to Hollow Core Production Facilities

Share Article

GRPM Prestress of Hawaii purchases state-of-the-art equipment from Dynacore. New machines are part of major upgrades to GPRM's hollow core concrete production facilities. GPRM cites high quality production and low maintenance costs as main decision criteria.

Dynacore™ Equipment Limited (Dynacore) announced today that GPRM Prestress, LLC (GPRM) will be taking delivery of Dynacore's latest generation hollow core concrete extrusion systems as part of major upgrades to GPRM's precast production facilities in Kapolei, Hawaii. GPRM will be installing Dynacore's PM20 power module, and EM150 and EM250 extrusion modules, to produce 6" (15 cm) and 10" (25 cm) pre-stressed hollow core slabs. These upgrades give GPRM greater production flexibility, operational efficiency, and lower operating costs. The new extrusion systems will be installed and ready for production by October 2009.

"The modular design of Dynacore systems and low maintenance costs were key to our decision," says Andy Boyd, sales manager at GPRM. "Since we can use the one power module with multiple extrusion modules, it proved more cost-effective than buying standalone systems. We will be introducing the 8" module shortly, and the Dynacore system gives us the flexibility to go up to a 16" section in the future. Hawaii is an expensive market to service because of location, labor costs, and we have to import all our equipment and parts, so it was important that Dynacore machines are designed to keep parts and maintenance costs to a minimum."

A Dynacore extrusion system consists of an extrusion module, which forms the hollow core slab, and a power module, which controls the extrusion process. The PM20 power module can be used with any size extrusion module, so producers manufacturing three sizes of hollow core can purchase a single PM20 and three extrusion modules, a 40% savings over the cost of three standalone extruders.

Another cost advantage of the Dynacore system is the replaceable auger end. One of the major expenses in hollow core production is auger replacement. Because the last 25% of any auger wears out faster than the rest of the auger, Dynacore has patented augers with replaceable ends. Rather than replace the entire auger every time, customers replace just the auger end, which is much cheaper than a complete auger and takes only thirty minutes to change out. On other equipment, the entire auger must be replaced, incurring a higher cost in both parts and production downtime.

"The GPRM team was very quick to understand the benefits of our advanced design," says Geoff Chambers, president of Dynacore. "They took a total cost-of-ownership approach when comparing extruders, factoring in the cost of replacement parts, material use, and maintenance time. We were very pleased that our system met their criteria."

For GPRM, the new equipment is essential to maintaining a leadership role in their market. "The Hawaiian market likes precast concrete and is very knowledgeable," says Boyd. "We want to encourage the use of hollow core by providing customers with a state of the art product, an efficient, high quality range of section sizes, and timely delivery. With these new extruders from Dynacore, we can continue meet those challenges while running a more cost-effective operation."

About GRPM Prestress
GPRM Prestress is a privately-held company based in Kapolei, Hawaii. The PCI certified plant supplies precast/prestressed structural products, including hollow core, bridge components, and architectural precast concrete. GPRM's history dates back to the 1958 founding of Rocky Mountain Prestress in Denver, Colorado and the 1966 establishment of the Dilligham facility on Oahu, Hawaii. The current facility was established in 1973 and is located in Campbell Industrial Park, Kapolei. For more information, contact GPRM at: +1 808 682 6000.

About Dynacore
Dynacore Equipment Limited is a privately-held company based in Vancouver, Canada. Dynacore has an established customer base in Europe, North America, the Middle East and Australia; it markets directly to hollow core producers in North America and through selected agents in Latin and South America, Africa, the Middle East, Europe and South Asia. Dynacore is ISO-9001:2008 certified. For more information, contact Dynacore at: +1 604 984 0444, or see our website at:


Share article on social media or email:

View article via:

Pdf Print

Contact Author

Janie Chang
Visit website