TECHNOLOGY | MACHINERY BLENDING
Loss-in-weight blender offers fast-response control
Movacolor has launched its MCS continuous loss-in-weight blender, which delivers fast- response control in extrusion processes where throughput can change quickly over short periods.
In some applications, melt pump interruptions can cause sudden and frequent output fluctua- tions. This can lead to unstable material flow, inconsistent blend ratios, increased scrap and rising material costs. While traditional continuous loss-in-weight systems offer high accuracy, many react slowly when extruder demand changes rapidly. Unlike traditional in-line
systems, where dosing units feed directly into the machine inlet, the MCS continuous loss-in-weight
DIES Crosshead is user-friendly and adaptable
Guill Tool has started offering its Unicam crosshead, which it says is user-friendly and adaptable. The name derives from a combina-
tion of advances made to two of its technologies: the Single-Point concentricity adjustment system; and the Cam-Lock fastener-free assembly system.
On the front of the head, the new universal adjustment system allows the user to choose either the traditional four-bolt method of concentricity adjustment or the Single-Point style of concentricity
34 PIPE & PROFILE EXTRUSION | Spring 2026
adjustment. Switching from traditional to Single-Point operation requires the removal of four locking bolts, says the company.
On the back of the head, the
improved Cam-Lock system allows the head to be disassembled with a single turn of a wrench for quick, easy colour changes or cleanouts. Thanks to the Cam-Lock system, turning the disas- sembly wrench not only loosens the splitter, but continuing to turn the wrench will mechanically extract the splitter.
With a half-turn of a wrench, users can typically clean or change colours and start the line again in less than 10 minutes. �
www.guill.com
www.pipeandprofile.com IMAGE: MOVACOLOR
level are known and monitored, the system can rapidly adjust dosing speeds to maintain a stable level in the hopper. This enables stable feeding behaviour and consistent blending performance. Benefits include: fast
blender is designed with a weighing hopper posi- tioned underneath the dosing machines. In this configuration, all dosing units feed into a weighing hopper with a hopper level sensor.
Because the exact hopper capacity and target material
response to throughput fluctuations; rapid dosing corrections to maintain a stable hopper level; reduced scrap and material waste; fewer off-spec products during pump interruptions and ramp-ups; and lower material costs – and higher ROI. “Even at very low
extruder capacities of 20–30 kg/h and masterbatch additions of just 1%, the system remains stable and accurate, said Klaas Talsma, product manager at Movacolor. �
www.movacolor.com
INSPECTION
New wares on show at
Chinaplas Maag will showcase products from its new subsidiary Sikora at Chinaplas in April. As well as showing its
own products – including continuous melt filters in its Ettlinger range – Maag will showcase several Sikora products. These include: Purity
Concept V, for inspection and analysis of pellets, flakes and test plates; Purity Scanner Advanced, for inspection and sorting of demanding plastic applications; Centerwave 6000 for measuring the wall thickness and diameter of pipes from 32 to 1,600mm; and X-Ray 6000 Pro, which measures all dimensions of multi- layer products, including minimum wall thickness. �
www.maag.com
IMAGE: GUILL TOOL
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