The Rock Thrower

About the Canadian Rock Thrower (CRT)

The first of its kind in the World, the Canadian Rock Thrower throws the rock with consistent rotation, speed and direction.  It is used to train for more effective sweeping as well as testing various types of sweeping.  It also can help curlers better understand changing ice conditions with repeated rocks on a path versus on a new path.  The training possibilities created with this type of accuracy are endless.  Great training tool for all levels of teams or players.

Quantifying the Science of Sweeping

Learn more about the exact effect of various sweeping techniques on a curling stone.

  1. Measure impact of Directional sweeping for curl 
  2. Measure impact of directional sweeping for straight 
  3. Directional sweeping - when do you use 2 sweepers ?
  4. Directional sweeping - early ? Middle ? Late ?
  5. "Knifing " impact - is this the best and when ?
  6. "Knifing" impact - can you slow down a heavy draw with Knifing ?
  7.  Ice management - How does air temperature, ice temperature and Humidity impact curling
    stones ?
  8. Measure impact - How far can 2 sweepers take a draw 
  9. Teaching tool - same throws - sweeper impact using smart broom technology 
  10. The more you use the CRT - the more questions you have ??? 

The CANADIAN ROCK THROWER - (CRT) 

  1. Invented by Chris & Lorne Hamblin 2017- Level 4 NCCP Olympic Coaches with assistance from EASCAN Automation Inc. Winnipeg
  2. Accuracy varified by National Research Council of Canada - 2016 
  3. Curl Manitoba used CRT for Next Gen program beginning in 2017 -Connie Laliberte 
  4. World Curling Federation used for research 2018 
  5. Curling Canada sweeping summit 2022
  6. World Curling use for testing 2025
  7. Cargill Curling Training
    Centre 2017 -2026 used the CRT for thousands of hours training teams, individuals & running camps
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Canadian Rock Thrower

Curling Canada using Canadian Rock Thrower on arena ice.

Training for Accuracy

Rock Hawk speed traps are used for many different aspects of the delivery and the game. They help players learn various thrown weights and also are used to train consistency in the kick out of the hack and both draws and hits at various speeds.