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CHAIN KNOCKERS

Depending on the tool size, Renssi® Chain Knockers feature one to three chains, each equipped with solid carbide inserts brazed directly to the chain links. These inserts provide powerful cleaning action that effectively removes rust, scale, and debris from pipe interiors with precision and efficiency.

Key Advantages

  • Removes rust, scale, and buildup quickly
  • Durable carbide inserts for extended tool life
  • Available in multiple chain configurations for different pipe sizes

Chains with rectangular carbide saw bits for descaling

RS-1

RS 0000 SERIES

Ideal for: 6mm, ¼” cable
Size Range: 35mm (1.5") to 100mm (4")

RS-1

RS 1000 SERIES

Ideal for: 8mm, 5/16” cable
Size Range: 35mm (1.5") to 200mm (8")

RS-2

RS 2000 SERIES

Ideal for: 10mm, ⅜” cable
Size Range: 50mm (2") to 200mm (8")

RS-3

RS 3000 SERIES

Ideal for: 12mm, ½” cable
Size Range: 50mm (2") to 300mm (12")

DRILL HEAD TOOLS

Chains with rectangular carbide sawbits & drill head for descaling & unclogging blockages

RS-DR-1.png

RS-DR 0000 SERIES

Ideal for: 6mm, ¼” cable
Size Range: 35mm (1.5")

RS-DR-1.png

RS-DR 1000 SERIES

Ideal for: 8mm, 5/16” cable
Size Range: 50mm (2") to 200mm (8")

RS-DR-2.png

RS-DR 2000 SERIES

Ideal for: 10mm, ⅜” cable
Size Range: 50mm (2") to 200mm (8")

RS-DR-3.png

RS-DR 3000 SERIES

Ideal for: 12mm, ½” cable
Size Range: 50mm (2") to 200mm (8")

STARBIT CHAIN KNOCKERS

Chains with carbide starbits (3 teeth) that are sharper than the sawbits for tougher descaling jobs

RS-WS-1.png

RS-WS 0000 SERIES

Ideal for: 6mm, ¼” cable
Size Range: 35mm (1.5") to 75mm (3")

RS-WS-1.png

RS-WS 1000 SERIES

Ideal for: 8mm, 5/16” cable
Size Range: 50mm (2") to 150mm (6")

RS-WS-2.png

RS-WS 2000 SERIES

Ideal for: 10mm, ⅜” cable
Size Range: 50mm (2") to 200mm (8")

RS-WS-3.png

RS-WS 3000 SERIES

Ideal for: 12mm, ½” cable
Size Range: 50mm (2") to 200mm (8")

STARBIT CHAIN KNOCKERS WITH DRILL HEADS

Chains with carbide starbits & drill head for tougher descaling jobs, root infiltration and hard debris

RS-WS-1.png

RS-WS-DR 1000 SERIES

Ideal for: 8mm, 5/16” cable
Size Range: 50mm (2") to 150mm (6")

RS-WS-2.png

RS-WS-DR 2000 SERIES

Ideal for: 10mm, ⅜” cable
Size Range: 50mm (2") to 150mm (6")

RS-WS-3.png

RS-WS-DR 3000 SERIES

Ideal for: 12mm, ½” cable
Size Range: 75mm (3") to 200mm (8")

CHAIN TOOLS WITHOUT CARBIDE

PVC chains for light cleaning in PVC/fragile pipes and lined pipes

RS-NC-1.png

RS-NC 0000 SERIES

Ideal for: 6mm, ¼” cable
Size Range: 35mm (1⅜”) to 125mm (5")

RS-NC-1.png

RS-NC 1000 SERIES

Ideal for: 8mm, 5/16” cable
Size Range: 35mm (1⅜”) to 200mm (8")

RS-NC-2.png

RS-NC 2000 SERIES

Ideal for: 10mm, ⅜” cable
Size Range: 50mm (2") to 200mm (8")

RS-NC-3.png

RS-NC 3000 SERIES

Ideal for: 12mm, ½” cable
Size Range: 50mm (2") to 200mm (8")

CIRCULAR CHAIN KNOCKERS

Circular chains with rectangular carbide sawbits

keharassi_wc_1000.png

WC 1000 SERIES

Ideal for: 8mm, 5/16” cable with 4mm, ⅛” chain
Size Range: 50mm (2”) to 150mm (6")

keharassi_wc_2000.png

WC 2000 SERIES

Ideal for: 10mm, ⅜” cable with 4mm, ⅛” chain
Size Range: 50mm (2”) to 300mm (12")

keharassi_wc_3000.png

WC 3000 SERIES

Ideal for: 12mm, ½” cable with 4mm, ⅛” chain
Size Range: 75mm (3") to 300mm (12")

keharassi_wc_3000.png

WC 3000-5 SERIES

Ideal for: 12mm, ½” cable with 5mm, 3/16” chain
Size Range: 75mm (3") to 400mm (16")

CIRCULAR CHAIN KNOCKERS WITHOUT CARBIDE

Circular chains for light cleaning in fragile pipes and lined pipes

RS-NC-1.png

NC 1000 SERIES

Ideal for: 8mm, 5/16” cable with 4mm, ⅛” chain
Size Range: 50mm (2”) to 150mm (6")

RS-NC-2.png

NC 2000 SERIES

Ideal for: 10mm, ⅜” cable with 4mm, ⅛” chain
Size Range: 50mm (2”) to 300mm (12")

RS-NC-3.png

NC 3000 SERIES

Ideal for: 12mm, ½” cable with 4mm, ⅛” chain
Size Range: 75mm (3") to 300mm (12")

RS-NC-3.png

NC 3000-5 SERIES

Ideal for: 12mm, ½” cable with 5mm, 3/16” chain
Size Range: 75mm (3") to 400mm (16")