Twin disc cutters, namely double disc cutters, are mainly applied to excavate in soft ground. Soft ground TBM cutterhead needs a considerably more open structure than hard rock TBM to allow adhesive muck to pass through. Twin disc cutters save more space than single disc cutters. In addition, twin disc cutters are more effective in stabilizing and cutting boulders.

Cutter rings are forged with alloy tool steel and specially heat-treated to reach proper balance between hardness and toughness. And for different geology conditions, cutter rings are made into different profiles and width to get the maximum excavating efficiency. Tungsten carbide tips can be inserted in rings if cutters are applied in very abrasive ground.
To improve hub wear resistance in abrasive ground, cutter hubs are heat-treated up to high hardness or coated wear resistance material in exposed section.

To improve sealing ability under high pressure, metal floating seal and anti-dust seal are assembled in cutters. If necessary, the pressure compensated piston will be assembled in shaft, so Lubrication oil will not leak and sand will not permeate, in this way cutters bearing have long lifetime.

According to working conditions, cutters starting torque is adjusted to proper level by preloading bearings correctly in complex ground conditions especially in soft ground, in order that cutters rotate freely and are prevented from being blocked.

You are currently browsing our twin disc cutters. We also manufacture other TBM disc cutters, TBM cutter disks, TBM cutter tools, roller disc cutters, rolling disc cutters, RCD roller cutters, raise boring cutters, tricone bits and diamond rock bits.

LION ROCK TOOLS CO.,LTD mainly produces and sells rock drilling tools, mine fittings, civil engineering tools, rock/soil boring and digging tools, cutting tools of shield machine etc. With its top technicians, abundant production experience, superior equipment, advanced mamufacturing engineering, scientific management system and high-quality after-sale services, the company is developing rapidly and constantly in the fierce market competition. Furthermore, LION ROCK TOOLS CO.,LTD has already passed the ISO9001:2000 and ISO14001:2004.The company has the self-supported import and export right.The main products of LION ROCK TOOLS CO.,LTD include varies sizes of DTH bits, button bits, rock bits, conical picks, flat picks, borer picks, Rock Auger picks,rotary drilling rig picks, mining machine picks, cutting tools of subway, colliery, ground ore, metallurgy, water conservancy,DTH hammer, Drilling Rigs, Drilling Products and other industries.Can be customized according to customer's requirements.

LION ROCK TOOLS:High quality,good service!
Special in producing high quality Rock Drilling Tools, DTH bits and hammers, Road Milling Tools, Round Shank Cutter Bits, Coal Mining Tools etc. Can be customized according to customer's requirements.

YANGGU LION ROCK TOOLS CO.,LTD
MR.Eric
Mobile:0086-13290252086
E-mail:DTHbits@gmail.com           MSN:RockTools@MSN.CN
MSN:RockBits@msn.com                           Skype:RockBits
QQ:2309243118                                      ICQ:648634355
www.rock-tools.com                    FAX:0086-635-6381797
Nanhuan Road(W),Yanggu,Liaocheng,Shandong,CHINA PC:252300

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