SANOU

全球性夹持技术和制造专家 Global clamping technology and manufacturing expert

浙江三鸥机械股份有限公司是国家火炬计划重点高新技术企业、全国企事业知识产权工作试点单位，是世界上从事钻夹头和机床附件研发制造的主要企业之一。旗下拥有“三鸥”、“丰收”、“三钢”、“双鱼”等畅销品牌，主要产品有高端动力卡盘、精密手动卡盘及各种高端机床功能附件、扳手钻夹头、手紧钻夹头及带自锁钻夹头、自紧钻夹头等二百多个品种，产品出货量稳居世界前列。

作为全球性的夹持技术和制造专家，我们重视技术研发与创新，截至2024年7月，公司已拥有与钻夹头、卡盘相关的专利累计授权514项，其中8项美国专利，5项德国专利，16项PCT专利。技术创新的同时，我们坚持大力投入设备技改、导入自动化和TPS相结合的精益生产模式，ERP管理信息系统，SPC统计过程控制系统，IPD研发系统、MES智能制造系统和阿米巴经营管理模式等，2023年被浙江省经信厅评为了“浙江数字化工厂”，持续提升智能制造能力，提高优质生产效率。

在“以技术创新助力全球制造”的使命指引下，三鸥将持续专注夹持科技创新与制造，与全球顶级客户同步共进，共同推动全球工业升级。

ZHEJIANGSANOUMACHINERYLIMITED COMPANY is a key high-tech enterprise of the National Torch Project, a national intellectual property pilot unit, and one of the majorcompanies engaged in the development and manufacturing of drill chucks and machinery accessories in the world. Our company owns "SAN OU", “Harvest", “Sangang", "Shuangyu″ and other salable brands. There are over 200 varieties of main products, including high-end power chucks, precise manual chucks and a variety of high-end machineryaccessories, key type drill chucks, keyless drill chucks, keyless drill chucks with lock system, self-tighten drill chucks and so on , and our product shipments rank in the forefront of the world.

As a global clamping technology and manufacturing professional enterprise, we attach importance to technology development and innovation.By July 2024, we have possessed a total of 514 patents related to drill chucks and lathe chucks, including 8 US patents, 5 German patents and 16 PCT patents. At the same time of technological innovation, we insist on vigorously investing in the technical transformation of equipment, and introducing lean production mode combining automation and TPS, ERP management information system, SPC statistical process control system, IPD R & D system, MES intelligent manufacturing system and Amoeba operation and management mode. In 2023, our company was rated as "Zhejiang Digital Factory" by Zhejiang Economic and Information Department. We will continue to improve intelligent manufacturing capacity and increase high-quality production efficiency.

Under the guidance of the mission of “contribute to global manufacturing through technological innovation", SANOU will continue to focus on technological innovation and manufacturing, and work together with the world's top customers to promote global industrial upgrading.

三鸥夹持科技与世界工业同步

SanOu clamping technology Synchronized with world industry

PRODUCT CATALOGUE 产品目录

自带修爪器超精动力卡盘 001-002
ULTRA-PRECISION POWER CHUCK WITH SELF-CONTAINED JAW
TRUING DEVICE
5μm级超高精耐用动力卡盘 003-004
5μm CLASS SUPER PRECISION HIGH DURABLE POWER CHUCK
5μm级大孔径超精高耐用液压动力卡盘 005
5μM LARGE THOUGH HOLE SUPER PRECISION HIGH DURABLE POWER CHUCK
立车用中实动力卡盘 006
POWER CHUCK FOR VERTICAL LATHE
后拉式动力卡盘 007-008
PULL DOWN POWER CHUCK
通用锁止球卡盘 009-010
UNIVERSAL LOCK BALL STOP CHUCK
自定心2+2爪动力卡盘 011-016
SELF CENTERING 2+2 JAW POWER CHUCK
薄型高速中空回转油缸 017-023
HIGH SPEED COMPACT HOLLOW ROTARY HYDRAULIC CYLINDERS
中实回转油压缸
024
ROTAING HYDRAULIC CYLINDER
PLUS-M精密可调卡盘/PLUS高精密卡盘
025-026
PLUS-M HIGH-PRECISION / PLUS HIGH-PRECISION CHUCK
ADJUSTABLE CHUCK
Pro 高精度卡盘 027-028
Pro HIGH-PRECISION CHUCK
丰收、三钢高精密卡盘 029-030
“HARVEST"BRAND、“Sangang"BRAND HIGH PRECISION LATHE CHUCK
手动卡盘 031-074
MANUAL CHUCK
卡盘附件 075-076
CHUCK ACCESSORIES
中型扳手钻夹头 KS/TT系列
KEY TYPE CHUCK MEDIUM DUTY KS/TT SERIES 077-078
重型扳手钻夹头 JJ系列
KEY TYPE CHUCK HEAVY DUTY JJ SERIES 079-080
重型扳手钻夹头 ZW/HARVEST系列
KEY TYPE CHUCK DUTY ZW / HARVEST SERIES 081-082
重型扳手钻夹头 三钢
KEY TYPE CHUCK HEAVY DUTY SANGANG SERIES 083
重型扳手钻夹头 三锦
KEY TYPE CHUCK HEAVY DUTY SANJING SERIES 084
重型扳手钻夹头 JP系列
KEY TYPE CHUCK HEAVY DUTY JP SERIES 085-086
重型扳手钻夹头 RM系列
KEY TYPE CHUCK HEAVY DUTY RM SERIES 087
自紧式钻夹头 重型
SELF-TIGHTEN CHUCK SYSTEM HEAVY DUTY 088-097
自紧式钻夹头 轻型
098
SELF-TIGHTEN CHUCK SYSTEM LIGHT DUTY
自紧带锁式钻夹头
099-102
SELF-TIGHTEN CHUCK WITH LOCK SYSTEM
CNC高精密自紧夹头
102-107
CNC SELF-TIGHTEN CHUCK
丝锥夹头 两爪木工夹头 卡盘扳手 108-109
TAPPING CHUCK 2-JAW TAPPING CHUCK LATHE CHUCK WRENCH
卡盘扳手及包装 110-113
LATHE CHUCK WRENCH&PACKING

夹持工件外圆修爪
限位套顺时针方句转动，限位 套基准线对齐刻度板“右侧基 准线”

When not broaching the jaws, align the reference line of the limit sleeve with the 0 reference line on

镗爪王

Claw Repair Method For Chuck

Bore Claw King

-自带修爪器动卡-

Self – contained Jaw Dressing Device Power Chuck

小白都能镗

Even beginners can perform boring operations

5μm

主要功能部件

Main functional components

如何使用镗爪王

How to use Boring Claw King

镗爪时，油压不要超过0.5Mpa，防止拉坏限位套 Application Scenarios: Clamping and machinir metal bars, pipes, fla ofiles

不镗爪时
限位套基准线对准刻度板上
的“0基准线”

When expanding and clamping the inner circle of the workpiece for jaw trimming, turn the limit sleeve counterclockwise so that the reference line of the "limit sleeve aligns with the left reference line of the 'scale plate\*.
撑紧工件内圆修爪 限位套逆时针方句转动，限位 套基准线对齐刻度板“左侧基 准线”
When clamping the outer circle of the workpiece for jaw trimming. turn the limit sleeve clockwise so that the reference line of the "limit sleeve' aligns with the right reference line of the "scale plate'.

Reset the limit sleeve, adjust the safety pin,and set it to the locked position to preventthe limit sleeve from shifting to the tooljawdressing position under the inertia forcegenerated by high-speed rotation.

复位限位套：拧紧“安全销”，防止高速旋转惯性力作用下限位套跑到修几位置

5μm

小白都能镗

撑、夹镗爪可自由切换 Freely switch between supporting and clamping boring jaws modes

更省时 More Time -saving

减少到传统时间的1/10 The time consumed for boring jaws operations is reduced to 1/10 of the traditional time.

更高精 Higher Precision

尺寸图 DIMENSION DRAWING

重复精度5μm The repeatability of clamping accuracy can reach 5μμ m. μ m

5μm级

开创性重大升级

Groundbreaking major upgrade

1. 关键部件特殊淬火，一次性装夹加工成型。

2. 盘体爪槽硬度HRC60,在恶劣环境下使用大幅提高使用寿命。

3.50万次重复夹紧，不易磨损，仍保持μm精度，且各项性能均保持稳定输出。

1.内六角螺丝Hexagon socket screw
2.法兰盘Flange
3.螺丝Screw
4.钢珠Steel ball
5.弹簧Spring
6.紧定螺丝Set screw
7.提拉环Lifting ring
8.推拉套Sliding sleeve
9.楔心套Wedge catch system
10.T型块T-Block
11.油杯Oil cup
12.爪座Jaw seat

4. 基爪座及锲形套硬度HRC60,零下150度深冷处理，提高尺寸稳定性，耐磨性。

1. Special quenching of key components, one-time clamping processing.

2. Hardness of chuck body jaw slots is HRC60, greatly improve the
1 service life in harsh environments.

3. 500,000 times repeated clamping, not easy to wear, still maintain A μm accuracy, performance to maintain stable output.

4. The base jaw seat and the wedge plunger hardness is HRC60, minus150 degrees cryotreatment, improve dimensional stability, wear resistance.

普通动卡Ordinary Power Chuck
三鸥Micro动卡SANOU Micro Power Chuck

尺寸图 DIMENSION DRAWING

尺寸表 Dimension table

夹持力性能曲线 CLAMPING FORCE PERFORMANCE CURVE

5μm级大孔径超精高耐用液压动力卡盘 5μMLARGE THOUGH HOLE SUPER PRECISION HIGH DURABLE POWER CHUCK

立车用中实动力卡盘 POWER CHUCK FOR VERTICAL LATHE

尺寸图DIMENSION DRAWING

尺寸表Specificaton sheet

楔形三爪中实卡盘

WEDGE-HOOK type 3-jaw high speed power chuck.

防切屑及防水设计，特别适合使用于立式车床Sealed against swarf,chips and coolant,suitablefor vertical lathe.

后拉式动力卡盘PULL DOWN POWER CHUCK

0 可同时将工件做径向夹持与轴向后拉，使工件不上浮并紧贴卡盘基准面。

0 高刚性硬化处理的本体与原柱后拉机构，并经过轴孔精镗，确保夹持精度与耐用度。

Radial clamp and axial pull down at the same time, keep the workpiece attaching close to the base surface of the chuck.

The body and the cylinder pull-down mechanism are heat-treated and fine boring, which guarantee the clamping precision and durableness.

尺寸图DIMENSION DRAWING

后拉固锁式动力卡盘PULL LOCK POWER CHUCK

1. 销柱后拉型三爪中空卡盘。

2. 高夹持力及高精度。

3. 特别适合使用于需要重切削的场合。

1. Pin-Arbor Draw Down type 3-jaw thru-hole power chuck.

2. High radial gripping force and high accuracy.

3. Suitable for heavy maching.

球锁动力卡盘 UNIVERSAL LOCK BALL STOP CHUCK

补偿型 Compensatory type

1.适合铸件或锻件等原材料加工

2.特别适用于需要重切削的场合

3.完全密封设计，防尘防水，保持卡盘高持久性

4.摆动机构零件均以热处理硬化及研磨，以提升产品使用寿命

5.夹持部位最大允许锥度可达10°

1.Suitable for processing raw materials such as castings or forgings

2.It is particularly suitable for occasions that require heavy cutting

3.Fully sealed design, dust-proof andwater-proof, ensuring high durability of the chuck

4.All parts of the swing mechanism are hardened by heat treatment and ground to enhance the service life of the product 1

5.The maximum allowable taper of the clamping piece can reach 10 degrees

PBL部件 PBL parts

尺寸图DIMENSION DRAWING

自定心2+2爪动力卡 SELF CENTERING 2+2 JAW POWER CHUCK

应用

高精度自定心四爪动力卡盘（2+2）或锻件的外径或内径技术特点

加工矩形和方形工件的理想选择；

两两对中，四爪同时均匀受力不需要双活塞油缸，

High precision self-centering 4-jaw power chuck(2+2jaw) Technical features

Ideal for rectangular and square work pieces self-centering in two axles

Single wedge actuation does not require dual-piston cylinder2+2 jaw chuck with 2 independendent self-centering jaws

动态夹持力图

Dynamic Grip Force Diagram

尺寸图 DIMENSION DRAWING

夹持范围：058\~0760

Clamping Range :

为了最大限度地延长卡盘寿命，

建议每天至少两次加注卡盘专用油脂进行润滑。

It is recommended to grease chucks at least twice a day in order to maximize longevity.

自定心2+2爪动力卡盘 SELF CENTERING 2+2 JAW POWER CHUCK

动态夹持力图 Dynamic Grip Force Diagram

应用

高精度自定心四爪动力卡盘（2+2）或锻件的外径或内径技术特点

加工矩形和方形工件的理想选择；

两两对中，四爪同时均匀受力不需要双活塞油缸，标准油缸驱动Application

High precision self-centering 4-jaw power chuck(2+2jaw)

Technical features

Ideal for rectangular and square work pieces self-centering in two axles

Single wedge actuation does not require dual-piston cylinder2+2 jaw chuck with 2 independendent self-centering jaws

尺寸图DIMENSION DRAWING

夹持范围：058\~0760

Clamping Range :

为了最大限度地延长卡盘寿命，

建议每天至少两次加注卡盘专用油脂进行润滑。

It is recommended to grease chucks at least twice a day in order to maximize longevity.

自定心2+2爪动力卡盘 SELF CENTERING 2+2 JAW POWER CHUCK

比标准3爪性能优良Better Performance Than Standard 3-jaw

标准三爪 standard three-jaw
指示器Indicator

指示器Indicator

IDF四爪 IDF four-jaw

工件升降量减小1/10 1/10 decrease in workpiece lifting range

标准三爪 standard three-jaw

IDF四爪 IDF four-jaw

功能/应用实例

Function / Application examples

2+2自定心补偿夹紧装置

2+2 self centering and compensating clamping\*

起初，Z1+Z2这对卡爪仅施加使工件定心所需的力。

只有当Z1和Z2两对卡爪都与工件接触时，才会施加工作所需的夹紧力。

In the beginning the jaw pairs Z1+Z2 only apply a force that is necessary to center the workpiece. Only if both jaw pairs Z1and Z2are in contact with the workpiece, the grip force necessary for machining is applied.

长方形或矩形工件的2+2自定心和补偿夹紧 2+2 self centering and compensating clamping of rectangular or square workpieces

圆形或薄壁工件的2+2自定心和补偿夹紧

不规则工件的2+2自定心和补偿夹紧 2+2 self centering and compensating clamping of unshaped workpieces

ST系列ST SERIES

材质：缸体铝合金锻造 Material:Aluminum alloy forging of cylinder body.

新颖结构：缸体表面硬质氧化>HV500,C型组合密封圈，油压0.2MPa时启动顺滑无“爬行”

Novel structure: Hard oxidation on the surface of the cylinder body>HV500, C-type combination sealingring, When the oil pressure is 0.2MPa, it starts smoothly without "crawling".

专利产品、高寿命、低噪音、高转速

Patent product,high lifespan,low noise,high speed

低摩擦，启动阻力小，运动平稳，无“爬行”

Low friction, small starting resistance, smooth movement, no "crawling".

双向压力密封;
Bidirectional pressure seal.

保压时间长，泄油量小 Long pressure holding time, small oil leakage.

安装时可前后锁

It can be locked back and forth during installation.

安全构造：内附逆止阀结构确保异常断电20秒内下降标准值1.96KN，实际测下降值在0.4以内。

Safety structure: Comes with a check valve structure inside, it ensures that within 20 seconds of abnormal power outage, the standard value of decrease is 1.96KN, and the actual measured decrease value is within 0.4.

油温：长时间运行温升在30℃以内 Oil temperature: The temperature rise during long-term operation is within 30 °C

尺寸图DIMENSION DRAWING

尺寸表 DIMENSION TABLE

SD系列SD SERIES

材质：缸体铝合金锻造 Material:Aluminum alloy forging of cylinder body.

新颖结构：缸体表面硬质氧化>HV500,C型组合密封圈，油压0.2MPa时启动顺滑无“爬行”

Novel structure: Hard oxidation on the surface of the cylinder body>HV500, C-type combination sealing ring, When the oil pressure is 0.2MPa, it starts smoothly without "crawling".

专利产品、高寿命、低噪音、高转速

Patent product,high lifespan,low noise,high speed

低摩擦，启动阻力小，运动平稳，无“爬行”

Low friction, small starting resistance, smooth movement, no "crawling".

双向压力密封;
Bidirectional pressure seal.

保压时间长，泄油量小 Long pressure holding time, small oil leakage.

安装时可前后锁

It can be locked back and forth during installation.

安全构造：内附逆止阀结构确保异常断电20秒内下降标准值1.96KN，实际测下降值在0.4以内。

Safety structure: Comes with a check valve structure inside, it ensures that within 20 seconds of abnormal power outage, the standard value of decrease is 1.96KN, and the actual measured decrease value is within 0.4.

油温：长时间运行温升在30℃以内 Oil temperature: The temperature rise during long-term operation is within 30 C

尺寸图DIMENSION DRAWING

尺寸表 DIMENSION TABLE

SST系列SST SERIES

材质：缸体铝合金锻造 Material:Aluminum alloy forging of cylinder body.

新颖结构：缸体表面硬质氧化>HV500,C型组合密封圈，油压0.2MPa时启动顺滑无“爬行”

Novel structure: Hard oxidation on the surface of the cylinder body>HV500, C-type combination sealing ring, When the oil pressure is 0.2MPa, it starts smoothly without "crawling".

专利产品、高寿命、低噪音、高转速

Patent product,high lifespan,low noise,high speed

低摩擦，启动阻力小，运动平稳，无“爬行”

Low friction, small starting resistance, smooth movement, no "crawling".

双向压力密封;
Bidirectional pressure seal.

保压时间长，泄油量小 Long pressure holding time, small oil leakage.

安装时可前后锁

It can be locked back and forth during installation.

安全构造：内附逆止阀结构确保异常断电20秒内下降标准值1.96KN，实际测下降值在0.4以内。

Safety structure: Comes with a check valve structure inside, it ensures that within 20 seconds of abnormal power outage, the standard value of decrease is 1.96KN, and the actual measured decrease value is within 0.4.

油温：长时间运行温升在30℃以内 Oil temperature: The temperature rise during long-term operation is within 30 C

尺寸图DIMENSION DRAWING

尺寸表DIMENSION TABLE

专利产品、高寿命、低噪音、高转速

无论是高压还是低压，都具有良好的密封性。

低摩擦，启动阻力小，运动平稳，无“爬行”

双向压力密封

保压时间长，泄油量小

安装时可前后锁

Patent product, high lifespan, low noise, high speed

Both high and low pressure have good sealing properties

Low friction, low starting resistance, smooth movement,no "crawling"

Bidirectional pressure seal

Long pressure holding time ,The oil discharge is small

It can be locked back and forth during installation

中实回转油压缸ROTAING HYDRAULIC CYLINDER

1. 短型、高速、轻量型回转油压缸。

2. 内建逆止阀自锁机构及压力泄压阀。

3. 安装时可同后端锁固之。

1. For short form,light weight and high speed rotary cylinder.

2. Built-in safety check valves and pressure relief valves.

3.Can screw it from the rear end of the cylinder when mounting.

泄油孔配管务必单独接回油压槽，以免产生背压。

The drain port should be independently connected to oil tank to avoid back pressure.

PLUS-M精密可调卡盘 PLUS-M HIGH-PRECISION ADJUSTABLE CHUCK

0 具有可调结构，可调精度≤0.005mm； Specific adjustable structure, adjustable precision ≤0.005 mm;

所有零件均采用研磨工艺，产品稳定性更高，旋转灵活丝滑；

尺寸图DIMENSION DRAWING

All components undergo grinding processes, resulting in higher product stability and smoother, more flexible rotation;

盘体采用QT500 优质球墨铸铁材料，耐用性高，使用寿命长;

The disc body is made of high-quality QT500 ductile iron, offering high durability and a long service life;

应用场景：适用于磨床，高精密数控车床及各种高精密加工设备。

Application scenarios: Suitable for grinders, high-precision CNC lathes, and various other high-precision machining equipment.

外型尺寸 DIMENSIONS

PLUS高精密卡盘 PLUS HIGH-PRECISION CHUCK

同心度≤0.02mm，重复精度≤0.01mm； High Accuracy: Concentricity ≤ 0.02 mm, repeatability≤ 0.01 mm for precise and stable machining;

关键零件均采用研磨工艺，产品稳定性更高， 旋转灵活丝滑;

Precision-Ground Parts: Ensures excellent stability and smooth rotation.;

盘体采用QT500优质球墨铸铁材料，耐用性高，使用寿命长。

Durable Build: QT500 ductile iron body for long service life.

0 应用场景:适用于磨床，高精密数控车床及各种高精密加工设备。

Applications: Suitable for grinding machines, high-precision CNC lathes, and other precision machining equipment.

尺寸图 DIMENSION DRAWING

外型尺寸 DIMENSIONS

Pro高精度三爪卡盘 Pro HIGH-PRECISION THREE-JAW CHUCK

尺寸参数Dimension parameters

PRO高精度卡盘系列 三鸥Pro高精度卡盘

SANOU PRO HIGH-PRECISION CHUCK

同心度≤0.03mm

The concentricity is less than or equal to 0.03mm

盘体

盘体采用高强度铸铁 The chuck body is made of high strength cast iron

进口多用炉淬火，稳定性更高 Imported multi-purpose furnace quenching, higher stability.

全流程加工中心生产，零件一致性高，确保批量产品精度≤0.03mm

Full process machining-center production, high consistency of parts, to ensure that the accuracy of batch products is less than or equal to 0.03mm

值得信赖的高精度手动卡盘 Reliable high-precision manual chuck

1.高精度 High precision

2.长寿命 Long life

3.复合化加工工艺

Composite processing technology

Pro高精度四爪卡盘 Pro HIGH-PRECISION FOUR-JAW CHUCK

尺寸、性能参数 Dimension characterstic parameters

PRO高精度卡盘系列 三鸥Pro高精度卡盘

SANOU PRO HIGH-PRECISION CHUCK

同心度≤0.03mm

The concentricity is less than or equal to 0.03mm

盘体

盘体采用高强度铸铁 The chuck body is made of high strength cast iron

进口多用炉淬火，稳定性更高 Imported multi-purpose furnace quenching, higher stability.

全流程加工中心生产，零件一致性高，确保批量产品精度≤0.03mm

Full process machining-center production, high consistency of parts, to ensure that the accuracy of batch products is less than or equal to 0.03mm

值得信赖的高精度手动卡盘 Reliable high-precision manual chuck

1.高精度 High precision

2.长寿命 Long life

3.复合化加工工艺

Composite processing technology

“HARVEST"BRAND HIGH PRECISION LATHE CHUCK

“丰收牌”锻钢卡盘

Harvest forged steel lathe chuck

尺寸参数 Dimension parameters

1.锻钢盘体，高强度、高载荷、高转速。

2.卡爪、盘丝采用20铬锰钛（20CrMnTi）合金钢，抗冲击，更耐磨，使用寿命长。

3.全流程加工中心生产，德国瑞士检测设备，保证批量产品精度≤0.03mm。

4.高精度、高夹紧力，柔性生产，快速发货。

1.Forged steel body,high strength high load,high rotation speed.

2.The jaws and scroll are made of 20CrMnTi alloy steel with high impact strength,high wear resistance and long service life.

3.Whole process CNC machinning,Swiss and Germany improted inspection tools ensure the precision≤0.03mm.

4.High precision,high clamping force,flexible production and fast delivery.

特征：

1.短圆柱连接形式。

2.K11A、K11C和K11D型卡盘卡爪为分离爪形式，可调整为正卡爪或反卡爪使用。

3.K11A和K11D型卡盘卡爪符合ISO3442标准。

4.K11C型卡盘卡爪为传统结构的分离爪。

5.可提供各种形式的软卡爪。

Features:

1.Short cylindrical center mounting.

2.The jaws for K11A,K11C and K11D chucks are composed of two-piece jaws.They can perfrom as either internal jaws through adjustment.

3.The jaws for K11A and K11D chucks conform to ISO3442 standard.

4.Model K11C chucks are supplied with traditional two-piece jaws.

5.We can provide all kinds of soft jaws.

"Sangang"BRAND HIGH PRECISION LATHE CHUCK

“三钢牌”高牌号铸铁卡盘

“Sangang" brand high grade cast iron chuck

尺寸参数 Dimension parameters

特征：

1.高精度≤0.05mm。

2.K11型卡盘配带整体爪（正卡爪和反卡爪各一付）。

3.易损部件经过特殊处理，有效的提高耐磨性和使用寿命。

4.较高的自定心精度，更大的夹紧力，满足于高紧密加工。

5.工字槽、伞齿孔淬火，提高硬度不易磨损，延长使用寿命。

Features:

1.Hight precision less than 0.05mm

2.K11 type chuck with overall jaws (a pair of upright jaws and reverse jaws)

3.Chuck body contains alloying element witch madeby especially craft,with high density,high strength,to improve the durability of chuck

4.Higher precision of self-centering,larger clamping force,to satisfy the process of high precision

5.Jaw guide. hole of gear quenching,improue hardness not easy to wearr,extend service life.