Products Description

NBH2084X precision fine boring tool set is a special high-precision boring tool for CNC machining centers. Adopting upgraded lightweight LBK shank structure, its boring diameter ranges from φ8 to φ320mm, with micro adjustment precision up to 0.005mm.Equipped with eccentric fine adjustment structure with zero rotational clearance and no jamming, it achieves more stable, accurate and smooth machining. The scale slide rail rough adjustment design greatly speeds up tool setting and simplifies operation. Its over-position locked boring bar and closely fitted flange deliver outstanding anti-vibration performance. LBK shank supports flexible extension, and the whole unit is 2kg lighter than traditional NBH2084 boring heads. Built-through holes fit tungsten steel anti-vibration boring bars for deep hole processing. Thickened cross tool arm ensures high rigidity for heavy-duty large-aperture boring. The overall machining efficiency is improved by 50%, widely applied in mold, auto parts and heavy machinery precision boring industries.

product-594-784

product-557-495

Main Technical Specification

Model No.	Boring Range	R.P.M	Feed
XBJ2008-32	Φ08	S2600	F100
	Φ10	S2600	F100
	Φ12	S2600	F80
XBJ2012-53	Φ13	S2200	F100
	Φ16	S2200	F80
	Φ20	S2000	F60
XBJ2020-83	Φ21	S2500	F100
	Φ25	S2200	F80
	Φ30	S2000	F80
XBJ2030-115	Φ31	S2200	F100
	Φ40	S2000	F80
	Φ50	S1800	F60
XBJ2050-125	Φ51	S1500	F80
	Φ70	S1200	F80
	Φ90	S1000	F60
XBJ2090-185	Φ90-180	S800	F80
XBJ20180-320	Φ181-320	S600	F80

Note: These parameters are the minimum cutting data verified by actual machining of untempered stainless steel.

Boring Tool Set Accessory List

Boring Tool Model	Tool Holder Model	Boring Range	Adjustment Precision	Weight
NBH2084X	LBK6-55L	Φ8-Φ320	Φ0.005 per division	2.15kgBT-40: 1.27kg

Specifications of 7 Boring Bars

Boring Bar Model	Boring Range	Depth	Insert Model	Screw Model
XBJ2008-32L	8-12mm	32mm	TBGT060102L	SB-1STR-M2
XBJ2012-53L	12-20mm	53mm	TPGH090202L	SB-2STR-M2.5
XBJ2020-83L	20-30mm	83mm	TPGH110302L	SB-3STR-M3
XBJ2030-115L	30-50mm	115mm	TPGH110302L	SB-3STR-M3
XBJ2050-125L	50-90mm	125mm	TPGH110302L	SB-3STR-M3
XBJ2090-185	-	-	-	-
XBJ20180-320	-	-	-	-

product-291-367 product-191-384 product-483-340

1,Vertical Boring Bar & Assembly Direction ×5 Rotary Fine Adjustment Adjustment Stroke

2,Horizontal Boring Bar & Assembly Direction ×2

3,Horizontal Boring Bar Clamping Screws ×2

4,Fine Adjustment Turret Locking Screws ×2

5,Rough Adjustment Slide Locking S

Technical Features

Our armor-type thermocouples and RTDs integrate cutting-edge design with industrial-grade reliability, boasting the following key advantages:

Wide Product Range

Adopts eccentric fine adjustment structure, zero rotational clearance, no jamming, with higher stability, precision and smoother operation.

Wide Applications

We offer a variety of transmission components, including sprockets, roller chains, gears, couplings, racks, hubs, pulleys, taper sleeves, bearing seats, and more.

High Strength

We offer a variety of transmission components, including sprockets, roller chains, gears, couplings, racks, hubs, pulleys, taper sleeves, bearing seats, and more.

Professional

We offer a variety of transmission components, including sprockets, roller chains, gears, couplings, racks, hubs, pulleys, taper sleeves, bearing seats, and more.

Adopts eccentric fine adjustment structure, zero rotational clearance, no jamming, with higher stability, precision and smoother operation.

Scale slide rail rough adjustment structure realizes faster and more convenient tool setting.

Over-position locking boring bar and closely fitted flange structure brings excellent anti-vibration performance.

LBK shank enables convenient connection and extension, and the whole weight is 2kg lighter than NBH2084.

Features 0.005mm micro adjustment precision, with an ultra-wide machining range from φ8 to φ320mm.

Built-in through hole allows installation of tungsten steel boring bars for deep hole machining.

Thickened cross rod is more suitable for large-aperture cutting operations.Overall comprehensive machining efficiency is increased by 50%.

Industrial Applications

Widely Adaptable to Multi-Industry Heavy-Duty Machining

Mold Manufacturing Processing

Precision deep hole and large aperture boring for mold cavities and inserts

Auto Parts Processing

High-precision coaxial hole machining for auto components and hydraulic valve bodies

CNC General Processing

Precision inner hole finishing for CNC machining centers and CNC lathes

Construction Machinery Processing

Deep cavity boring for engineering machinery and pipeline valve fittings

Non-Standard Precision Parts Processinge

High-precision tolerance boring for non-standard mechanical parts and shaft sleeves

FAQ

Common Issues Customers Face Daily

Q: Q1: Why do traditional boring tools cause inaccurate dimensions and out-of-tolerance workpieces?

A: A1: Old boring heads have obvious rotational clearance. Dimensional drift occurs after long-time cutting, resulting in poor batch consistency and high scrap rate.

Q: Q2: Why do chatter marks and poor surface finish frequently appear in long-overhang deep hole machining?

A: A2: Ordinary boring bars have insufficient locking rigidity and loose flange fit. High-speed cutting causes severe resonance, leading to unqualified hole surface precision.

Q: Q3: Why do ordinary NBH boring heads increase machine load and limit spindle speed & processing efficiency?

A: A3: Original NBH boring heads are heavy, adding extra burden to machine spindles. They cannot adapt to high-speed precision cutting and greatly reduce production cycle efficiency.

Q: Q4: Why conventional boring tools have poor versatility and frequent tool changes delay production progress?

A: A4: Most ordinary boring heads have narrow aperture ranges. They cannot be used for both small and large holes. Frequent tool replacement and re-tool setting waste plenty of production downtime.

Q: Q5: Why ordinary boring tools cannot achieve stable high-precision slender deep hole machining?

A: A5: Without built-through holes, regular boring heads cannot install long tungsten steel anti-vibration bars. Insufficient rigidity easily causes tool deviation, breakage and precision out-of-control.

Q: Q6: Why traditional boring tools are complicated to operate and hard for new operators to guarantee stable machining accuracy?

A: A6: Without convenient rough adjustment structure, manual fine tuning has complex steps and high errors. It takes long tool setting time, and it is difficult to control consistent dimensional quality in batch producti.

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