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Home > Product Lines > Hole Making > Rough Boring Tools>NLR Twin-flutes Rough Boring Head with Bridge

Product Features

● Boring Range: Φ150-Φ850

● rectangular guide structure, can transfer large torque 

● wide adjustment range 

● a variety of tool holders, interchangeable 

● Φ210 above optional aluminum alloy tool bridge, the weight of the tool bridge can be reduced by 60% 

● Φ610 can be connected with the spindle flange, the connection is rigid enough, cutting stability


  • Steel

  • Stainless steel

  • Cast iron

  • Non-ferrous metal

  • Super Heat resistant alloy

  • Hardened steel

Product Ranges

NLR Twin-flutes Rough Boring Head with Bridge

NLR双刃桥式粗镗刀.jpg

DesignationDcL1LDConnectionKgCartridge
NLR D150-210.K63.C150-210899963K635.1L..A D150..
NLR D150-210.K90.C150-210899988K905.4L..A D150..

●The cartridge should be ordered separately, please click here.

●The adaptor should be ordered separately, please click here.

●Recommended cutting data  please click here.

●Scale mark basis.

   The scale value for CC06/CC09/TC11/SO06 with R0.4. The scale value for SO09 with R0.6. 

   The scale value for CC12/SC09/SC12/SO12 with R0.8. The scale value for SO16 with R1.2.


NLR Twin-flutes Rough Boring Head with Bridge

NLR双刃桥式粗镗刀(1).jpg

DesignationDcLConnectionKgCartridge
NLR D210-290.C210-29089SNL 324.83L..A D150..
NLR D290-370.C290-37089SNL 326.13L..A D150..
NLR D370-490.C370-490102SNL 3212.64L..A D370..
NLR D490-610.C490-610117SNL 3217.22L..A D370..
NLR D610-730.C610-730122SEL 4022.6L..A D370..
NLR D730-850.C730-850127SEL 4026.83L..A D370..

●The cartridge should be ordered separately, please click here.

●The adaptor should be ordered separately, please click here.

●Coolant tube for item 210-290 and 290-370 should be ordered separately. Ordering sample: SG M16X67-D3.

●The different cutting parameters of cutting tools for machining different materials, please click here.

●Scale mark basis.

   The scale value for CC06/CC09/TC11/SO06 with R0.4. The scale value for SO09 with R0.6. 

   The scale value for CC12/SC09/SC12/SO12 with R0.8. The scale value for SO16 with R1.2.


如何使用.jpg

加工中照片.jpg  刀具图片.jpg  加工后图片.jpg

Tool informationExisting cutting tool 1Existing cutting tool 2Test Tool 2
BrandBIGBIGSOMGDE
Cutter body (cutter head, arbor, Shank) modelSLN200-270(Rough Boring Tool）SLN200-270（Precision Boring Tool）SNL 210-290.C
（Coarse and Fine Boring Tool）
Diameter(mm)240240240
Number of teeth211
Blade and cutting tool typeCCMT 120408TCGT110204L AC520U（BIG）TCGT110204L AC520U(BIG)
Number of blade/blade233
Speed(rpm)210200300
Linear Velocity VC(M/min)158150225
Feed rate per tooth(mm/z)0.1070.180.132
Per feed transfer(mm/rev)0.2140.180.132
Table/spindle feed(mm/min)453640
Cutting Depth ap(mm)444
Processing Surface roughnessRa
Ra4.0Ra3.0
Processing length L(mm)280280280
Single piece processing time(S）373467420
Number of work pieces processed
11


August 21 test, provided by the customer blade, test knife body size stability, coarse and fine one-way vibration-free knife phenomenon, up and down hole size changes in. 005, save half precision time 6.2 min, test results approved by customers




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Address: No. 18 Lianzhu Rd. Huaxi Street Changxing Huzhou Zhejiang China

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