Please read these instructions before use and keep them where
the operator may refer to them whenever necessary.
OPERATION MANUAL
OPERATION MANUAL DOWNLOAD SITE
http://big-daishowa.com/manual_index.php
MEGA ER GRIP
φd
φD
16
º
Nut(Option
）
SPECIFICATION
(Min. clamping length)
The length of the cutting tool shank
which is inserted into the chuck must be
longer than the min. clamping length.
MEGA ER GRIP
ER Collet(Option
）
ER Collet(Option
）
ERC No.-ød
mm(inch)
Recommended
Clamping Range
mm(inch)
øD
Model
Model
MEGA ER16
MEGA ER11
MEGA ER20
MEGA ER25
MEGA ER32
MERN16
-
MERN20
MERN25
MERN32
MERN16SN
-
MERN20SN
MERN25SN
MERN32SN
ERN16
ERN11
ERN20
ERN25
ERN32
3-5.75
6
0 - -0.25
0 - -0.50
10-15 (7.4-11.1)
NBA10B
NBA 6B
NBA13B
NBA16B
NBA20B
NBK10
NBK13
NBK16
FK45-50L
ø30
ø19
ø35
ø42
ø50
NEW BABY Wrench(Option)
〈
for MEGA ER GRIP
〉
Adjusting Screw
(Option)
MEGA ER Nut
(Option)
MEGA ER Solid
Nut(Option)
ER Nut
(Option)
Model
Tightening Torque
N･m(lbf・Ft)
10-15 (7.4-11.1)
-
-
35-40 (25.8-29.5)
40-50 (29.5-36.9)
50-60 (36.9-44.3)
70-80 (51.6-59.0)
10-15 (7.4-11.1)
35-40 (25.8-29.5)
40-50 (29.5-36.9)
50-60 (36.9-44.3)
70-80 (51.6-59.0)
MGR30L
NBK 6
MGR35L
MGR42L
MGR50L
MEGA Wrench
(Option)
Model
Model
Model
Model
Tightening Torque
N･m(lbf・Ft)
øD
ød
HOW TO USE MEGA WRENCH
TO REMOVE AND INSERT THE COLLET
Depress the collet from the "BIG" logo side in the
direction of the arrow.
Fit a circumferential groove
of the collet into the large rib
behind the "MEGA ER
GRIP" mark. Push the collet
behind the "BIG" logo.
If it is difficult to work by finger, please
use Collet Remover sold separatery.
Collet Remover
●
Collet Remover
The collet must be fitted into the
nut before assembling into the
body.
2-2.9
3-5.75
6-10
3-5.75
6-13
3-5.75
6-16
3-5.75
6-20
(.118-.226)
(.236)
(.079-.114)
(.118-.226)
(.236-.394)
(.118-.226)
(.236-.512)
(.118-.226)
(.236-.630)
(.118-.226)
(.236-.787)
0 - -0.10
0 - -0.25
0 - -0.50
0 - -0.25
0 - -0.50
0 - -0.25
0 - -0.50
0 - -0.25
0 - -0.50
(-.0098)
(-.0197)
(-.0039)
(-.0098)
(-.0197)
(-.0098)
(-.0197)
(-.0098)
(-.0197)
(-.0098)
(-.0197)
recommend our own make of pullstud. It should be
replaced every two years.
DO NOT USE any pullstud which has damage marks to its
draw head area or is deformed.
1.
2.
CAUTION
MEGA ER thread size = ISO 15488
ERC collet = DIN 6499 , ISO 15488 Form B
Do not use collets or nuts from other manufacturers
to maintain the optimum accuracy.
TO INSERT THE COLLET
TO REMOVE THE COLLET
Rib
Push
Slit
Logo
Depress
Slit
Logo
ASSEMBLE
Slide the MEGA WRENCH
over the nut to leave the
face marked "LOCK" nearer
the cutting tool. Rotate the
MEGA WRENCH in the
direction of the arrow
applying the appropriate
tightening torque.
DISASSEMBLE
Slide the MEGA WRENCH
over the nut to leave the face
marked "OPEN" nearer the
cutting tool. Rotate the
MEGA WRENCH in the
direction of the arrow
ensuring the nut achieves its
free position. Then
disassemble the cutting tool.
To ease the application of the MEGA
WRENCH to the chuck it is suggested to
rotate in the reverse direction while sliding
into position.
CAUTION
NEVER clamp the nut without inserting cutting tool.
NEVER USE any chuck which has been damaged, has cracks or
excessive runout.
NEVER USE a cutting tool which has a shank below the minimum of the collet.
Remove any flaws and traces of oil and particles from both the inside of
the chuck and cutting tool shank.
DO NOT USE any cutting tool which shows wear to its second rake of
more than 0.2mm(.0079").
1.
2.
3.
4.
5.
ASSEMBLY OF THE CUTTING TOOL
DO NOT continue if vibration / chatter is experienced.
DO NOT touch the chuck or cutting tool while the spindle is revolving.
1.
2.
DURING OPERATION
CAUTION
DO NOT USE a cutting tool with notches or flats on the
shank.
The cutting tool should be held via a cloth or similar to
avoid injury.
6.
7.
Min. Clamping
Length
Adjusting Screw (Option)
NBJ
