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BIG DAISHOWA
BBT / BT shank

BBT / BT shank

Product catalog summary

Overview: The document outlines technical specifications and guidelines for using BIG-PLUS tools in machining centers with conventional spindles. It includes details on various models and types of tool holders such as MEGA, NEW BABY, and Hi-POWER milling chucks, along with their specifications, accessories, and usage instructions.

Specifications:

BIG-PLUS tools are compatible with conventional spindles and comply with JIS B 6339 standards.
Models include BBT30, BBT40, and BBT50 with options in the MEGA and NEW BABY series.
Clamping ranges vary from ø0.25 to ø50, depending on the model.
Maximum rotational speeds range from 5,000 to 30,000 min-1.

Procedures:

Wrenches and adjusting screws must be ordered separately.
Adjustment length is indicated by "H" and requires an adjusting screw.
Hex socket head screws can be used as back stops for certain models.

Accessories:

MEGA WRENCH and NEW BABY NUT are available for specific models.
Optional adjusting screws and C-spanners are provided for axial length adjustments.

Recommendations:

Ensure compatibility with spindle systems and adhere to specified clamping ranges and rotational speeds.
Use appropriate accessories for optimal performance and precision.

Key Data from Tables:

Model numbers and their corresponding specifications, such as clamping range, length, and weight, are detailed.
Rotational speed limits and clamping lengths are specified for each model type.

Critical Information:

Ensure the correct model and accessories are selected based on machining requirements.
Follow specified procedures for tool adjustment and installation to maintain precision and safety.

Additional Specifications:
1. Filtration Systems: Includes a mist separator with 0.3 µm filtration and a micro mist separator with 0.01 µm filtration.
2. Precision Regulator: Ensures accurate pressure control.
3. Three-Port Valves: Used for extracting pressurization, non-grease type.
4. Air Filtering: Designed for turbine drive applications.

Dimensions and Materials:
1. Various dimensions are provided for different components, including diameters and lengths.
2. Materials include aluminum (A2017) and prehardened steel (HRC40).

Cutting Tools and Parameters:
1. Various cutters are specified, including rib-endmills, ball nose endmills, and solid drills.
2. Parameters such as spindle speed, feed rate, and depth of cut (D.O.C) are detailed for each tool.
3. High precision and extended tool life are emphasized, with specific examples of tool performance.

Tool Holders and Accessories:
1. Hi-JET HOLDER and NEW BABY CHUCK types are suitable for small diameter drills and end mills.
2. Maximum coolant pressure is 2MPa, and clamping nuts are sold separately.
3. Merit Sets include plates, rings, O-rings, and locking pads.

Safety and Usage Recommendations:
1. Avoid using neat oil coolant due to fire risk.
2. Exclusive STOP BLOCK is required for certain applications.
3. BIG-PLUS tools are compatible with conventional spindles.

Precision and Performance:
1. Outstanding runout accuracy allows for super thin wall cutting.
2. High-speed rotation drastically reduces cutting time.
3. Precision test bars are available for machine tool inspection and stability control.

Additional Notes:
1. Various models and configurations are available for different applications.
2. Contact agents for specific details and ordering information.

Catalog excerpts

BBT/BT SHANK

Open the catalog to page 1

Taper-off design minimizes interference and maximizes rigidity. BBT No. BIG-PLUS tools can be used in machining centers with conventional spindles. Collet Model

Open the catalog to page 2

Micro diameter design is ideal for high speed applications in tight areas with small diameter cutting tools. BBT No. BIG-PLUS tools can be used in machining centers with conventional spindles. Collet Model Spare Parts MEGA WRENCH MICRO COLLET PROTECTIVE CASE TAPER CLEANER MICRO SEAL NUT SEAL Sealed nut for coolant-through tools.

Open the catalog to page 3

JIS B 6339 (BIG-PLUS) Coolant-through hole Clamping Range : ø0.25 - ø20 Ideal ultra precision holders for high speed machining with carbide drills, reamers and endmills. Wide range of lengths and a variety of collet series sizes covers all machining applications. Adjusting Screw (Optional) BBT No. BIG-PLUS tools can be used in machining centers with conventional spindles. Collet Model 1. MEGA NUT is included. 2. "H" indicates the adjustment length with an Adjusting Screw. Adjusting screw cannot be used with BBT30-MEGA20N-60. "H" is the max. tool shank length that can be inserted into the holder....

Open the catalog to page 4

For BBT50, refer to the following page. BIG-PLUS tools can be used in machining centers with conventional spindles. Collet Model 1. MEGA NUT is included. 2. "H" indicates the adjustment length with an Adjusting Screw.

Open the catalog to page 5

JIS B 6339 (BIG-PLUS) Coolant-through hole Adjusting Screw (Optional) BIG-PLUS tools can be used in machining centers with conventional spindles. 1. MEGA NUT is included. 2. "H" indicates the adjustment length with an Adjusting Screw. MEGA WRENCH NBC COLLET G3 FOR ENDMILL COLLET G7 MEGA NEW BABY CHUCK MEGA 6N MEGA 8N MEGA10N MEGA13N MEGA16N MEGA20N Collet Model MEGA PERFECT SEAL ADJUSTING SCREW Rubber B L G Spare Parts

Open the catalog to page 6

Coolant-through hole Clamping Range : ø3.0 - ø12 Exclusively designed with the advanced technology for high speed endmilling. The long gripping length of the collet provides a powerful gripping force. For BBT40 & BBT50, refer to the following pages. BIG-PLUS tools can be used in machining centers with conventional spindles. 1. MEGA E NUT is included. 2. "H" indicates the adjustment length with an Adjusting Screw. MEGA WRENCH Collet Model MEGA E PERFECT SEAL ADJUSTING SCREW Rubber B L G Spare Parts Adjusting Screw (Optional)

Open the catalog to page 7

Coolant-through hole Adjusting Screw (Optional) BIG-PLUS tools can be used in machining centers with conventional spindles. 1. MEGA E NUT is included. 2. "H" indicates the adjustment length with an Adjusting Screw. Collet Model

Open the catalog to page 8

BIG-PLUS tools can be used in machining centers with conventional spindles. 1. MEGA E NUT is included. 2. "H" indicates the adjustment length with an Adjusting Screw. MEGA WRENCH Collet Model MEGA E PERFECT SEAL ADJUSTING SCREW Rubber B L G Spare Parts

Open the catalog to page 9

Coolant-through hole Clamping Range : ø16 - ø50 Close to integral rigidity and precision of a solid toolholder. Advanced technology for high speed and heavy duty endmilling. Two types are available, Type D for use with/without coolant through the tool and Type DS to feed coolant to cutting tool periphery. to Type DS For coolant periphery cutting tool For TYPE DS A Adjusting Screw (Optional) Adjusting Screw (Optional) BIG-PLUS tools can be used in machining centers with conventional spindles. 1. Wrench is ordered separately. 2. "H" indicates the adjustment length with an Adjusting Screw. As a...

Open the catalog to page 10

BIG-PLUS tools can be used in machining centers with conventional spindles. 1. Wrench is ordered separately. 2. "H" indicates the adjustment length with an Adjusting Screw. As a back stop for cutting tools for the MEGA16D models, a commercially available hex socket head screw can be used. ADJUSTING SCREW MEGA WRENCH

Open the catalog to page 11

Coolant-through hole For coolant to cutting tool periphery H Adjusting Screw (Optional) Adjusting Screw (Optional) BIG-PLUS tools can be used in machining centers with conventional spindles. 1. Wrench is ordered separately. 2. "H" indicates the adjustment length with an Adjusting Screw. As a back stop for cutting tools for the MEGA16DS models, a commercially available hex socket head screw can be used.

Open the catalog to page 12

BIG-PLUS tools can be used in machining centers with conventional spindles. 1. Wrench is ordered separately. 2. "H" indicates the adjustment length with an Adjusting Screw. As a back stop for cutting tools for the MEGA16DS models, a commercially available hex socket head screw can be used. ADJUSTING SCREW MEGA WRENCH

Open the catalog to page 13

Clamping Range : ø0.25 - ø20 Great variety in length in order to support high precision machining. Adjusting Screw (Optional) 1. NEW BABY NUT is included. 2. Max. 20,000 min-1 is valid for BT30 with L = 45, 60 or 75mm and BT40 with L = 60, 75 or 90mm. 3. "H" indicates the adjustment length with an Adjusting Screw. Collet Model

Open the catalog to page 14

For BT50, refer to the following page. 1. NEW BABY NUT is included. 2. Max. 20,000 min-1 is valid for BT40 with L = 60, 75 or 90mm. 3. "H" indicates the adjustment length with an Adjusting Screw. Collet Model For NEW BABY COLLET for ENDMILL G For TAP DRIVING BACK STOP G

Open the catalog to page 15

Adjusting Screw (Optional) 1. NEW BABY NUT is included. 2. Models of L longer than 200mm( ) do not have the coolant-through hole as standard. Spare Parts NBC COLLET G3 FOR ENDMILL COLLET G7 Collet Model 3. "H" indicates the adjustment length with an Adjusting Screw. BABY PERFECT SEAL For TAP DRIVING BACK STOP

Open the catalog to page 16

Coolant-through hole BIG's original design of slit structure supports heavy and finish end milling with high power and precision. Axial length adjusting screw (Optional) Axial length adjusting screw (Optional) BBT Shank Type BIG-PLUS tools can be used in machining centers with conventional spindles. C-Spanner Model 1. Wrench and axial adjusting screw is ordered separately if required. 2. "H" indicates the adjustment length with an Adjusting Screw. 3. As a back stop for cutting tools for the HMC16S models, a commercially available hex socket head screw can be used. "H" is the max. tool shank length...

Open the catalog to page 17

BBT / BT shank

BBT / BT shank

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