From concrete temperature control to tunnel and mine cooling, Koller provides block ice, flake ice and tube ice solutions that bring down mixing temperatures fast — preventing thermal cracking and ensuring structural integrity in hot-weather construction.

From concrete batching plants to tunnel boring and deep mine ventilation, Koller covers the full cooling chain for construction — block ice machines, macchine per il ghiaccio in scaglie, tube ice machines, ice crushers, blast freezers and walk-in cold rooms, all engineered around your project scale and ambient conditions.

Flake and block ice lower concrete mixing temperature to control hydration heat, preventing thermal cracking in mass pours for foundations, bridges and high-rises.

Block ice and flake ice systems cool tunnel boring environments and ventilation air, protecting workers and equipment in deep underground projects.

Large ice blocks transported underground absorb heat from airflow in ventilation shafts, lowering ambient temperature in deep mine tunnels where conventional AC fails.

Mass concrete pours in dam projects require precise temperature control. Koller block ice machines deliver the high-volume, slow-melt cooling needed for structural integrity.
Both block ice and flake ice play critical roles in construction — the right choice depends on your cooling duration, mixing method and project scale.


Match the right ice type to your construction application — from mass concrete cooling to tunnel ventilation and mine temperature control.

Grande, dense blocks that melt slowly — perfect for pre-cooling aggregate, mixing water and mine ventilation. The go-to choice for dam and infrastructure projects.
View Block Ice Machines
Magro, flat flakes that mix directly into concrete for rapid and uniform cooling. Ideal for hot-weather concreting and tunnel temperature control.
View Flake Ice Machines
Hollow cylindrical ice that is dense, food-grade and melts slower than flake ice. Used in construction site worker cooling stations and concrete pre-cooling.
View Tube Ice MachinesMatch the right ice type to your construction application in seconds.
| Tipo di ghiaccio | Forma | Best For | Capacity Range |
|---|---|---|---|
| Blocca il ghiaccio | ![]() |
Dam, mine cooling, aggregate pre-cooling | 1–200+ ton/day |
| Ghiaccio in scaglie | ![]() |
Concrete mixing, tunnel cooling | 0.5–100+ ton/day |
| Ghiaccio liquame | ![]() |
Onboard construction, high-value projects | 0.5–5 ton/day |
| Piatto di ghiaccio | ![]() |
Industrial concrete cooling, processing plants | 2–10 ton/day |
| Cubo di ghiaccio | ![]() |
Construction site display & worker cooling | 1–30 ton/day |
Not sure which ice type fits your construction project? Leave us a message about your application and our consultants will get back to you with a detailed solution.
Complete the cooling chain with ice crushers for on-site block processing, walk-in cold rooms for ice storage and refrigeration units for temperature control.



Le soluzioni Koller hanno aiutato più di centinaia di partner a raggiungere il successo aziendale.



Your reliable ice machine supplier with innovative abilities, prestazioni di prim'ordine e controllo di qualità premium.
High-volume production in a short time and customizable ice sizes for your construction project requirements.








Flake ice and block ice are the two most widely used types for concrete cooling. Flake ice mixes directly into the concrete batch for rapid, uniform temperature reduction. Block ice is crushed on-site and added to the mixing water or aggregate, providing longer-lasting cooling for large pours in extreme heat.
Adding ice to concrete lowers the mixing temperature, which controls the hydration heat during curing. This prevents thermal cracking, improves structural strength and extends working time in hot weather — critical for dams, tunnels and large foundations.
Capacity depends on daily concrete volume, ambient temperature and target mixing temperature. Koller offers block ice machines from 1 Ton to 200+ tons per day and flake ice machines from 0.5 A 100+ tonnellate al giorno. Share your project details and our engineers will size the right system.
SÌ. Koller provides containerized ice making systems that can be transported and installed at remote sites including tunnels, mines and dam projects. These units are self-contained with integrated cooling, water supply and electrical systems.
Block ice produces large, dense blocks that melt slowly and are ideal for pre-cooling aggregate or mixing water before concrete batching. Flake ice is thin and flat, mixing directly into concrete for faster and more uniform cooling. Block ice suits large-scale projects; flake ice suits precision temperature control.
Large ice blocks are transported underground and placed in ventilation shafts or cooling chambers. As the blocks melt slowly, they absorb heat from the airflow, lowering the ambient temperature in deep mine tunnels. Koller block ice machines from 5 A 200 tons per day support mine cooling projects worldwide.
Koller blast freezers reach freezing temperatures of -60°C to -25°C, with fast cooling speed and an adjustable temperature system. Walk-in freezers hold -25°C to -12°C and walk-in coolers hold -12°C to +5°C.
All machines carry a 1-year warranty covering free repairment and components. Beyond the warranty period, the same service is still provided at cost.


