Rolling out heavy HDPE geomembrane rolls over prepared ground —without the liner scratching against the soil, stones or the trench edge, and without wearing out the crew dragging the material by sheer force— calls for a rolling support point that reduces friction during deployment. This roller unwinder —also called a roll feeder or deployment guide roller— is a motor-free piece of KORWINS equipment, with a 710 × 540 mm aluminum frame and 450 mm rollers (two polyurethane and two stainless steel), designed to lay geomembrane, geotextile, geocomposite and drainage sheets with less effort and without damaging the liner surface.

Key benefits

Less effort for the crew: the rollers spin freely and the liner advances with minimal push, avoiding the brute-force dragging that tires the crew and throws the layout off.
Protects the liner against abrasion: the material passes over smooth rollers instead of rubbing on soil, gravel or the trench edge, eliminating scratches and micro-perforations that compromise watertightness.
Polyurethane and stainless steel rollers: they combine a soft grip that doesn't mark the membrane with the rigidity of stainless steel, and withstand jobsite weather.
Sturdy aluminum structure: a light but rigid frame, easy to reposition along the installation front, with good behavior against water and dust.
No motor, no maintenance: it needs no electricity or fuel; zero consumables and ready to use in the open field.

Applications and typical uses

Laying HDPE/LLDPE geomembrane in ponds, reservoirs, landfills and canals.
Deploying geotextile, drainage geocomposite and protection sheets.
Feeding the liner toward the wedge or extrusion welding area.
Controlled movement of heavy rolls on slopes and the floors of hydraulic works.

Quality and durability

A cheap roll feeder fails when the frame flexes under the weight of the roll, when the bearings seize up with dust, or when the roller coating peels off and starts marking the liner. This equipment is built with a reinforced aluminum frame, thick-walled rollers with smooth spin and a water- and dust-resistant finish, conditions to withstand repeated jobsite use without becoming a disposable consumable. Reference dimensions: 710 × 540 mm frame (28 × 21 in) and 450 mm roller (17.7 in).

Also known as: Technical: geomembrane unwinder, roll feeder, deployment guide roller, roller cradle, geomembrane roller stand. In the DR and the Caribbean: liner unwinder, roller for pulling geomembrane, roller guide for liner. In other countries: geomembrane unwinder (LATAM), geomembrane pull roller / film roller (USA), dévidoir à géomembrane (FR).

Material y construcción
Frame	Aluminum, 710 × 540 mm (28 × 21 in)
Roller	450 mm (17.7 in)
Rollers	2 polyurethane + 2 stainless steel
Dimensiones y formato
Weight	18.5 kg (41 lb) per set
Sistema eléctrico y motor
Power	No motor (manual)
Compatibilidad y uso
Function	Unrolling of rolls over the terrain

KORWINS® Roller unwinder

71 x 54 cm (28 x 21 in)

Features

KORWINS^® Roller unwinder