HIOS BLF-2000 User manual

Brushless Screwdrivers for automated assembly machines
●Screwdriver
BLF-2000
BLF-5000
BLF-7000
BLF-7000X
BLF-7025X
●
Screwdriver + Suction (Vacuum) Attachment
BLFQ Series
BLFR Series (For deeply recessed screws)
Operation Manual
（As of November 2016）
Utilizing 100％ post-consumer
recycled paper pulp
16A Operation Manual No. ET-A049
1-16-5 Akiyama, Matsudo City, Chiba Pref., Japan 270-2223
Phone: [phone] FAX: [phone]

- 2 -
Contents
■ Introduction ........................................................................................................................................... 3
■ Features ................................................................................................................................................... 3
■ Cautions after introducing the screwdriver and the power supply .................................. 4
■ Cautions when installing the screwdriver ................................................................................. 4, 5
■ Cautions when using a universal joint ........................................................................................ 5
■ Precautions ............................................................................................................................................ 6
■ About device adjustment ................................................................................................................ 7, 8
Bit Attachment
About torque adjustment
■ Names of main components of the screwdrivers .................................................................. 9
About ange
Combination table between the screwdrivers for automatic operation
and the power supplies for them
■ Specications of the screwdrivers ................................................................................................ 10, 11
Output torque guide (HI)
■ Exterior dimensions and details of the screwdrivers ............................................................ 11, 12
Figure of installation dimensions
■ Suction (Vacuum) Attachment BLFQ series .............................................................................. 13
BLFQ accessories list
Mouthpiece
Adjustment of mouthpiece
Bits
■ Suction (Vacuum) Attachment BLFR series .............................................................................. 14-19
BLFR accessories list
Identication of the BLFR Mouthpiece Order Code
Types of spring loaded mouthpiece (attachable to BLFR-5000 and BLFR-7000 series)
Adaptive screw size indications
■ Exterior dimensions of the suction attachments ................................................................... 20, 21
■ Vacuum Pump VP-3 ............................................................................................................................ 22
●Abbreviations of product names
Product names are abbreviated as follows for convenience in this document, except for the
cover page:
・Brushless Screwdrivers for automated assembly machines:
screwdriver
・Power supply dedicated for Brushless Screwdriver for automated assembly machines: power
supply
・BLF-7000, BLF-7000X and BLF-7025X models: BLF-7000 series

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■ Introduction
Thank you for purchasing the BLF series, BLFQ series or BLFR series of the brushless
screwdrivers for automatic operation.
Before using, please make sure to read this instruction manual well and use the tools
properly.
Please keep this manual in a safe place after reading.
NOTE
The screwdrivers have warranted its ability within controlled torque range.
However, please consider the following situation when installing the tools in customer’s
operation.
* If there is any inclusion (ex. Universal joint) at joint part between screwdriver and bit,
output torque would be badly affected by some conditions (ex. inertia or resistance).
Please select proper model considering torque with a margin.
■ Features
● Our brushless screwdrivers are durable and enable stable screw fastening.
● The durability has been improved by simplifying the control circuits.
● There are two types of the vacuum pick up screwdrivers.
The BLFQ is a standard vacuum pick up screwdriver.
The BLFR is for deeply recessed screws.
BLF-2000 BLF-5000 BLF-7000 series
BLT-AY-61 BLT-AY-71

- 4 -
■ Cautions after introducing the screwdriver and the
power supply.
Rotation speed of the screwdriver
● The rotation speed is di󱐯erent for forward and reverse rotations. Please refer to the values
on the specication of the screwdriver and the torque guide table only as rough guidelines.
● The rotation speed is measured without load. Please note the rotation speed varies when
the set value is 27 or more.
The controlled torque values are measured with the combination of a HIOS Torque Meter
HP-100 and a Fidaptor*. The values during your work are not always the same as the values
in the table. Please refer to the values in the table only as rough guidelines.
* For measuring torque with the screwdriver, use a daptor (accessory of HP-100), which
reduces and absorbs the inertia generated at stoppage and has the ability to reproduce
near-screw-fastening conditions to detect the torque when the clutch fires during
rotation of the screwdriver. Also, please use a dedicated torque measuring instrument,
HM Series, which can measure output torque of the screwdriver after it is installed.
■ Cautions when installing the screwdriver
● Note that screw fastening cannot be done with the screwdriver being installed upward.
● About the speed setting for screwdriver descending
If the descending speed of the Z-axis is faster than the screw fastening speed, screw oating
may occur due to overloaded tightening. Set the descending speed of the screwdriver
appropriate for the screw fastening.
● Consider the sti󱐯ness against Z-axis including the installation board of the screwdriver.
Note 1) Please select Z-axis based on the following formula: Screwdriver weight +
Installation angle weight = Tightening reaction force
Make sure to install the screwdriver with the above condition satisfied. (Please
contact us for details.)
Note 2) Please determine the thickness of the installation board tolerable with sti󱐯ness and
reaction force.
Guideline for the installation board thickness ・BLF-2000/BLF-5000: 8 mm or more
・BLF-7000 Series: 10 mm or more
● If the screw fastening cycle is short and constant torque is always required when a tapping
screw is fastened, it is necessary to check the required torque level by using an actual
machine. In such case, feel free to contact us.
● If the torque is high, presume that the reactive force against the screwdriver is strong and
the sti󱐯ness of the installation ange and Z-axis will impact on the screw fastening.
● Even if the above setting conditions are satised, overload may occur. In such case, review
the installation conditions.
● The ange and the main body of the screwdriver are xed with left-handed screws.

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● For the load in the direction to the axis of the screwdriver (thrust direction), design using a
damper mechanism.
* Dampers with simple shock absorbers are available from HIOS. Consider using them if appropriate.
Product Name: BLF Damper Unit
Part Number: BLF-DP (*Installation board is not included.)
Thrust Load Specications
Initial load 0mm Approx. 0.12N・m(1.2kg)
Stroke 7mm Approx. 0.6N・m(6kg)
■ Cautions when using a universal joint
● Offset from the center axis causes overload by twisting of the output axis. Incomplete
xation may cause power loss, overload on the screwdriver or twist, and may decrease the
output power of the screwdriver.
As a result, incomplete tightening may occur even if the output torque is a standard value.
● When using a universal joint, make sure that a rotational load is not applied to the bit.
(Note)
When using a universal joint, output torque of the screwdriver and the actual output torque
may be di󱐯erent due to inertia. Make sure to measure both torque of the screwdriver and
the actual output torque.
● When a universal joint is installed, make sure not to overload in the direction of the axis of
the screwdriver (thrust direction), and not to damage the workpiece and the screw bottom.
Guidelines for the load limit BLF-2000: 3kg or less
BLF-5000/BLF-7000 Series: 5kg or less
● When a universal joint or xture is installed under screw fastening conditions, implement
test tightening several times.
1. Is it fastened at the set torque?
2. Is the rotating speed of the screwdriver constant?
3. Isn’t the bit wobbling?
4. Is there any abnormal noise...etc? Check these prior to the nal tightening.
● When using a universal joint, make sure the bit turns by hand.
installation
board
Damper

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■ Example
■ Precautions
● Please read this instruction manual thoroughly before use to ensure proper operation.
● On any commercial power supply, install a ground-fault interrupt breaker and safety circuit
breaker.
● Connect the power supply to ground and use only the rated voltage.
● Please consider every condition such as power loss and inertia due to the Joint Shaft part,
etc. from the body to the bit of the screwdriver. Make sure to select the screwdriver that well
meets the requirements.
● In case a universal joint or jigs are used, the actual output torque values may be di󱐯erent
from the corresponding torque values displayed on the specication table.
● Please conrm that the screwdriver and the power supply are the right combination.
● The overload protection will be activated when the screwdriver is locked or has become
overloaded. If the screwdriver is overloaded repeatedly, the maximum ratings of the power
supply or screwdriver may be exceeded. If the screwdriver becomes overloaded during normal
operation or begins to malfunction due to developing excessive heat, stop the ongoing operation
immediately, turn the main power switch o󱐯, remove the power cable, and contact our service
department or HIOS distributor for repairs.
● When fastening screws on workpieces constructed of plastics susceptible to static electricity
build-up, operation should be done after static electricity has been discharged. If the work
pieces that have not been properly discharged, static electricity may ow up through the
end of the bit, causing malfunctions of the tools.
● Do not disassemble or modify the tools in any way, as doing so may cause malfunctions of the
tools. Such malfunctions are not covered by the HIOS warranty and repairs may be refused.
● The operating environment for the screwdriver should be between 5C and 40C with
relative humidity of 80% or less (there should be no possibility of condensation).
● Do not drop the tools or subject it to mechanical shocks.
●
Always hold the plug when inserting or removing power cables or the driver cords into or from
sockets
.
● Do not drag cords or cables, subject them to oil or to sharp edges, or place them under
heavy objects.
● If the tools will not be used for a long period of time, turn the main power switch OFF and
unplug it from the service outlet.
6
2
Z軸
Y軸
3. When connecting an Angle to the
Z-axis, fix it firmly. If it is loosely
xed, it may cause problems such as
overload.
Guidelines for the installation board
thickness:
・BLF-2000 / BLF-5000: 8 mm or more
・BLF-7000 Series: 10 mm or more
1. For the thickness of
the installation board
of the back board,
appropriate thickness
under the installation
conditions should be
kept when xing.
2. For the thickness of
the installation board,
appropriate thickness
under the installation
conditions should be
kept when xing.

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■ About device adjustment
Bit Attachment
１．Bit attachment
· Bit attachment for BLF-2000 (Chart) -1
Push in and hold the Joint Shaft Collar into the
body of the screwdriver to insert the bit.
· Bit attachment for BLF-5000 / BLF-7000 Series
(Chart)-2
Pull up and hold the Joint Shaft Collar from the
body of the screwdriver to insert the bit.
２．Please conrm the attached bit is locked rmly.
BLF-2000 uses the bit of HIOS H4 ( ∅4).
· BLF-5000 and BLF-7000 use the bits of HIOS H5 ( ∅5).
* Please use HIOS genuine bits.
∅4 or ∅5
· The bit drive of BLF-7000X and BLF-7025X is 1/4 HEX. Please purchase the commercial
products.
(Caution) Please purchase the commercial bit with the specied shape.
９.0 ｍｍ
6.35mm
(Hex bit types that cannot be used)
● Hex bits with two recesses and double bits cannot be
used with this product.
● BLF-2000
(Chart)-1 Bit attachment
● BLF-5000 / BLF-7000 Series
(Chart)-2 Bit attachment
Push in and hold the Joint
Shaft Collar into the body
of the screwdriver to insert
the bit.
Pull up and hold the joint
shaft collar from the body
of the screwdriver to in-
sert the bit.

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About torque adjustment
１． In case the torque value of screw fastening is xed in advance, refer to "Reference tables
of output torques" and turn the Torque Adjustment nut on the screwdriver, using torque
scale numbers (1-8) or (1-9).
(Caution)
Please use the reference tables of output torques as rough guideline to set torque.
２． Please rotate the torque control nut to reach the directly above position of the number.
· Fixation method (BLF-2000 only)
BLF-2000 has a xation mechanism with double lock nuts.
The position set with the Fixing nut is the congured torque setting value.
(Procedure)
2-1. Rotate the Fixing nut to reach the directly above
position of the torque scale number on the
screwdriver.
2-2. Rotate the Torque Adjustment nut to the position
of the Fixing nut. Make sure to tighten the nut
well then. To prevent position error of the Torque
Adjustment nut, tighten the Fixing nut well while
holding the Torque Adjustment nut.
３． Turn on the tools and implement screw fastening. When it stops, check the screw and
optimize the torque value.
* To check the torque of the screwdriver.
・ We recommend our Torque Meter: HM series. Even when you have only limited space,
you can measure the torque of the screwdriver installed to the automated assembly
equipment.
Torque control of BLF-2000
Torque control
scale
Torque
control nut
Fixing nut
1

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■ Names of main components of the screwdrivers
Combination table between the screwdrivers for automatic operation and the power supplies
for them
Model Convertible power supplies Number of controllable screwdrivers
BLF-2000 BLT-AY-61 1
BLF-5000
BLF-7000
BLT-AY-71 1BLF-7000X
BLF-7025X
* About the di󱐯erence between overseas specications and domestic specications of the power supply panels
The overseas specications conform to CE standard. Therefore, the POWER SW is located on the rear panel. The
ON/OFF indication lamp of the POWER SW is on the front panel side.
● For details of the power supply, please refer to the "Operation Manual" attached to the
power supply for automatic operation.
For BLF-2000 For BLF-5000 & 7000, 7000X, 7025X
Joint Shaft
Collar
Torque Adjustment nut
(BLF-2000 adopts double lock nut
mechanism)
Torque
control scale Flange Connector
About ange
2
6
4
8
Brushless
Driver
Made in Japan
BLF-5000
R
R
Power supply
BLT-AY-61/BLT-AY-71 (for controlling one screw driver)

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■ Specications of the screwdrivers
Model
BLF series BLF-2000 BLF-5000 BLF-7000 BLF-7000X BLF-7025X
BLFQ series BLFQ-2000 BLFQ-5000 BLFQ-7000 - -
BLFR series - BLFR-5000 - BLFR-7000X BLFR-7025X
Controlled
Torque
Range
N･m 0.03 - 0.35 0.3 - 1 0.7 - 2 0.7 - 2 1.2 - 2.5
Ibf･in 0.26 - 3.0 2.6 - 8.8 6 - 17 6 - 17 9 - 22
（kgf･cm） （0.3 - 3.5） （3 - 10） （7 - 20） （7 - 20） （10 - 25）
Torque Switching Stepless adjustment
Unloaded
Rotation Speed
(r.p.m) ± 10%
11steps
switching
LOW rotation
05 - 15 120 - 345 r.p.m 115 - 320 r.p.m 150 - 450 r.p.m 150 - 450 r.p.m 120 - 350 r.p.m
HI rotation
20 - 30 690 - 975 r.p.m 660 - 940 r.p.m 495 - 735 r.p.m 495 - 735 r.p.m 400 - 600 r.p.m
Available
screws (mm)
Machine screw 1.0 - 2.3 2.0 - 3.0 3.0 - 4.0 3.0 - 4.0 3.0 - 4.0
Tapping screw 1.0 - 2.0 2.0 - 2.6 3.0 - 4.0 3.0 - 4.0 3.0 - 4.0
Bit Drive*1
BLF series HIOS H4(∅4） HIOS H5 and
5HEX (both can
be used) HIOS H5(∅5） 1/4HEX 1/4HEX
BLFQ series - -
BLFR series -
∅4(screw type) - ∅4(screw type) ∅4(screw type)
Weight (g)*2
BLF series 315g 470g 700g 700g 700g
BLFQ series 390g 560g 830g - -
BLFR series - 700g - 1,070g 1,070g
Included
Accessories
Driver
cord
Cord length (m) 3m (10P)
Weight (g) 320g
Order Code BLF7-0611
Spring Silver - - - -
*1 Bit drive "1/4" is HEX 6.35mm, 5HEX is HEX 5mm.
*2 The weight (g) does not include the driver cord.
· The suction (vacuum attachment) for BLFR-7025X is available as a custom-made item. Please
feel free to ask us.
(Caution)
The controlled torque range of BLF-7000 series may be different from the value in the table
according to the working conditions.

- 11 -
Output torque guide (HI)
* BLF-2000 includes two Torque Adjustment springs. The silver spring is for high torque, while the black spring
installed to the main body is for low torque.
Please use the right spring according to your work.
・The above show the measurement results with a rotation speed of 30. Please use it as a reference.
・The torque values were measured by HIOS Torque Meter HP with a Fidaptor.
■ Exterior dimensions and details of the screwdrivers
See the details for each machine type.
2
6
4
8
Brushless
Driver
Made in Japan
BLF-5000
R
R
∅ 20a
b
L
Exterior dimensions ● Driver Cord Dimensions
Model
Total Length
(mm)
Diameter of
body（∅）
Connector
height (mm)
L a b
BLF-2000 124mm ∅ 38 7mm
BLF-5000 148mm ∅ 40 6.7mm
BLF-7000
160mm ∅ 42 6.7mmBLF-7000X
BLF-7025X
* The concavity and convexity are not considered for the dimensions.
Part Number: BLF7-0611
40mm
Cord Length 3m 16mm
BLF-2000*
Torque scale
Silver
Black
(Installed)
Torque scale Torque scale
BLF-5000 BLF-7000 series

- 12 -
■ Figure of installation dimensions
● BLF-2000 (H4)
● BLF-5000 (H5)
● BLF-7000 (H5)
● BLF-7000X / BLF-7025X (1/4HEX)
ȍ
5
5


 

ȍ㸲


ȍ

03
5LJKWKDQGHG㻌VFUHZ
ȍ
ȍ


 s
* The ange can be removed by
rotating it counterclockwise.
* The ange can be removed
by rotating it clockwise.
KROHVȍ
ȍ
5


 
ȍ


 03
/HIWKDQGHG㻌VFUHZ
 
ȍ
ȍ
ȍ

 s
KROHVȍ
ȍ

5

 
ȍ


 s
ȍ
 


ȍ
ȍ
03
/HIWKDQGHG㻌VFUHZ
ȍ

ȍ
 +(;
 s 
03
/HIWKDQGHG㻌VFUHZ
KROHVȍ
ȍ
5
 

㻌+(;
(Note) General tolerance is applied to the external dimensions with-
out tolerance indication above.
* The ange can be removed
by rotating it clockwise.

- 13 -
■ Suction (Vacuum) Attachment BLFQ series
As for vacuum pick up screwdriver, we deal with BLFQ (standard) and BLFR (custom-made)
Exterior view of BLFQ
BLFQ accessories list
Model
Mouthpiece Bit Suction Attachment
ASSY Accessories
Model
number Length Length (L) Diameter Model number
BLFQ-2000 F3 18mm 60mm HIOS H4( ∅ 4) BLFQ2-SET With Hose (Hose size:
Inner diameter ∅ 4 ×
Outer diameter ∅7;
Length: 3.5m)
BLFQ-5000 F6 31mm 100mm HIOS H5( ∅ 5) BLFQ5-SET
BLFQ-7000 F6 31mm 100mm HIOS H5( ∅ 5) BLFQ7-SET
* When you use BLFQ series, please attach the mouthpiece / bit / Suction Attachments in the table (optional
parts).
・
Please contact us about the bit type of 1/4 HEX (hex bit with distance across the ats is 6.35 mm) for BLFQ-
7000.
Mouthpiece
The model numbers of the mouthpieces holding the screws are as follows:
F3 (supports BLFQ-2000) F6 (supports BLFQ-5000 and BLFQ-7000)
Adjustment of mouthpiece (Only the mouthpieces of BLFQ
series are adjustable.)
The length of the screw protrudes from the mouthpiece can
be adjusted.
1. Rotate both the A part and B part at the same time to loosen.
2. Rotate the A part to open the holder; you can then adjust the length of the screw protrudes
from the mouthpiece.
3. Once adjustment is completed, tighten the B part to lock while holding the A part.
Bits
The bits used in the Suction (Vacuum) Attachment are required to be longer (L length) than
standard.
L length
Mouthpiece
Suction (Vacuum) Attachment ASSY
A part
The bottom part of
the screw
B part
｝

- 14 -
■ Suction (Vacuum) Attachment BLFR series
Outline
This attachment is designed to be installed in robots and makes torque adjustment and bit re-
placement easier. Because replacement is not required, it is optimal for robots.
This attachment can be e󱐯ectively used for di󱐰cult screw fastening positions including deep
holes where normal attachment interferes with fastening.
(Note) If you use the BLFR screwdriver in a reverse rotation, be careful about loosening the
bit because it is screwed on.
● Features of BLFR screwdriver
・ The BLFR Mouthpiece is double mouthpiece structure with a spring. There are 2 types of
those. One is a self-adjustable inner mouthpiece type.
The other one is a self-adjustable outer mouthpiece type.
There is another special mouthpiece that does not touch work piece which prevents work
piece from damaging.
・ Compared with the existing HIOS Mouthpiece, the ultimate vacuum of the BLFR Mouthpiece
is higher which helps to reduce vacuum screw errors.
・ The edge of the BLFR Mouthpiece touches parallel to the screw head which improves
uprightness of the screw.
・ The long Bit Holder prevents cross threaded screws.
2
6
Bit holder
Bit Holder ASSY
Screw-on type bit
Bit can be replaced by reversing itself.
Tip shape
Bit socket
(2) Bit
(screw type)
Length
(3) Mouthpiece with spring
(Refer to "P.16-17.”) Torque Adjustment nut
・Torque can be adjusted without
removing the cover.
(1) Suction Attachment ASSY
Exterior view of BLFR
<Interior structure>

- 15 -
BLFR accessories list (Table 1)
Model
(1) Suction At-
tachment ASSY (2) Bit (screw type) Bit Holder ASSY
Order Code Tip
Shape Order Code Length Diameter Order Code Length Bit drive
BLFR-5000 BLFR5-SA ＋ #1 RBP4140S 40mm ∅4 BLFR5-3060 122.8
mm 5HEX
#2 RBP4240S
BLFR-7000X BLFR7-SA ＋ #1 RBP4140S 40mm ∅4 BLFR7-3060 122.8
mm 1/4HEX
#2 RBP4240S
BLFR-7025X BLFR7-SA ＋ #1 RBP4140S 40mm ∅4 BLFR7-3060 122.8
mm 1/4HEX
#2 RBP4240S
* The hose is optional. (Hose size: Inner diameter ∅ 4.6 × Outer diameter ∅ 6; Hose length: 3.5m)
・
Please refer to the cross recess size and screw size below.
#0 (M1.4 - M1.7) #1 (M2.0 - M2.6） #2 (M3.0 - M5.0)
● Please check below before purchasing the BLFR series:
BLFR accessories list (Table 1): (1) Suction Attachment ASSY, and (2) Bit, and
Size of spring-loaded mouthpiece suitable for operation (Table 2) need to be selected.
Please refer to pages 16 and 17 for the type of spring loaded mouthpiece and appli-
cable screws to select the most suitable size for your work.
(Accessories are optional.)
* If you have any questions, please contact us.

- 16 -
■ Identication of the BLFR Mouthpiece Order Code
Symbol of Mouthpiece: F (F6, F3)
Spring: S → with spring
Classications of driver torque range: 6 (Only 6 is available at this moment)
Type of Mouthpiece:
1 → Self-adjustable inner mouthpiece type
0 → Self-adjustable outer mouthpiece type
Mouthpiece Inner Diameter: e.g. 80 →φ 8.0
Material/Shape:
J → POM / A→ Aluminum / S→ Stepped
ＦＳ６０－８０Ｊ
■ Types of spring loaded mouthpiece (attachable to BLFR-5000 and BLFR-7000 series)
● Self-adjustable inner mouthpiece type
Order Code: FS61-68
Φ6.8
Φ8
17.5
as vacuuming
a screw
Order Code: ：FS61-68S
Φ5.6 Φ4
as vacuuming
a screw
Order Code: FS61-74
Φ9 Φ7.4
as vacuuming
a screw
* Neither the inner mouthpiece (FS61-68S) nor the outer mouthpiece damage the workpiece
during operation, because they can pick up screws without touching the workpiece.

- 17 -
● Self-adjustable outer mouthpiece type
Order Code: FS60-68J・FS60-68A
Φ8 Φ6.8
17.4
7.6
POM: FS60-68
Stepped: FS60-68A
as vacuuming
a screw
Order Code: FS60-80J
Φ10 Φ8
as vacuuming
a screw
Adaptive screw size indications (Table 2)
Screw Size M2.6 M3.0 M4.0
Screw Type Pan Binding Truss Pan Binding Truss Pan Binding Truss
Model
BLFR-5000
FS61-68
FS61-68S
FS61-68
FS61-68S
FS61-68S
FS61-74 FS61-74 - -
BLFR-7000X FS60-68J / FS60-68A -
FS60-80J
M4.0 or
larger
-
BLFR-7025X FS60-68J / FS60-68A -
FS60-80J
M4.0 or
larger
-

- 18 -
●Movements of the inner mouthpiece
Vacuum starts.
Sealing with a screw
Engagement with
vacuum
Sliding mouthpiece
Mouthpiece spring
Mouthpiece holder
●Movements of the outer mouthpiece
Sliding mouthpiece
Vacuum starts.
Sealing with a screw
Engagement with
vacuum
* Because the mouthpiece is thinner than the screw’s outer diameter, you can e󱐯ectively fasten the
screw in a narrow space.
●Comparison in case of screw fastening at a slant:
e.g.) 4mm screw is tightened with the pilot hole deviated from the straight position by 1.5mm.
10°
1°
Fulcrum
Fulcrum
・The screw doesn’t fall because
of the high fulcrum.
・The screw falls because of the
deviation of the pilot hole.
BLFR series Normal screwdriver
* With a long bit holder, a screw doesn’t fall and slanted fastening can be prevented.
The sliding mouthpiece
moves horizontally to
hold the screw head and
keeps it straight.
The sliding mouthpiece moves hori-
zontally to hold the screw head and
keeps it straight.

- 19 -
●Variations
Length of mouthpiece + holder
Standard(85L)
2
6
85
87.4
17.4
・The standard total length of a mouthpiece and a holder is 85L. 32L, 56L, 60L, 95L and 125L
are available as customized specications.
For deeper holes
Mouthpiecestopper
Mouthpiecespring
Mouthpiece
Mouthpieceholder
85
27
22.4
・For deeper holes, the mouthpieces of 41L and 61L are available in addition to 27L.
・Furthermore, for a hole depth of 2.6 mm or smaller, we can prepare a customized mouthpiece.
However, please note that because the customized mouthpiece becomes thinner toward the
tip, the vacuum pressure tends to be weak.
* The customized mouthpieces may take longer for delivery depending on the stock status.
Please make an inquiry before placing an order.

- 20 -
■ Exterior dimensions of the suction attachments
● BLFQ-2000 (Mouthpiece: F3 Length: 18mm as standard)
● For bit H4-60mm, dimension from tip of bit to ange is 79.1mm
● Dimension of *part depends on the actual length of bit.



ȍ

ȍ ȍ
ȍ

*
*
● BLFQ-5000 (Mouthpiece: F6 Length: 31mm as standard)

*
● For bit H5-100mm, dimension from tip of bit to flange is 117.8mm
● Dimension of *part depends on the actual length of bit.
● BLFR-5000 (installed FS60-68J)
2
6
4
102
35.1
Tilt angle 45゜360゜rotation
70
85
17
17.4
196.2
2.4
φ12
φ8
Unit: mm