Characteristic

Model : Z2R21

Adjustable Floating Resistance: You can finely adjust the floating resistance without limitations, ranging from automatic centering to free floating. This means you can customize the tool's settings as needed to ensure optimal performance.

Tool Weight Adjustment: By adjusting the floating resistance, you can achieve better tool settings, which is beneficial for both vertical and horizontal applications. Even in horizontally-oriented adjustable automatic centering, you can keep the tool centered within the Floating Reamer Holder, preventing chatter and extending the tool's lifespan.

Combination of Ball Bearings and Sliding Bearings: This type of boring bar holder combines ball bearings and sliding bearings to facilitate smooth floating. Ball bearings are suitable for low-load applications, providing smooth motion. Sliding bearings, on the other hand, resist high-stress pressures in high-load applications, ensuring stability.

Double Sealed Protection Against Contamination: This boring bar holder is equipped with double seals to effectively prevent coolant and machining chips from entering the Floating Reamer Holder, ensuring its smooth operation.

Excellent Drilling Quality: This boring bar holder restricts tool movement to parallel floating, contributing to high-quality drilling results.

Floating Reamer Holder

When using a floating Reamer Holder on a lathe, it's often necessary to compensate for the axial deviation between the chuck and the hole to be machined. This type of error can be eliminated by using a self-centering floating reamer holder.

The working principle of afloating reamer holder is based on a mechanism that allows parallel axial movement. It compensates for eccentricity between the floating reamer holder and the workpiece.

Features of the floating reamer holder include:

Ball Bearings and Axial Drive Structure: floating reamer holder typically feature unique ball bearings and axial drive structures. These components enable smooth vertical and horizontal movements, even under high torque during the boring process. This means they can operate effectively in high-load applications while maintaining stability.

Radial Floating: floating reamer holder have the capability for radial floating. This means they can automatically return to the center position and achieve 360° full floating in the radial plane (with a maximum floating amount of up to 0.8mm on one side). This helps ensure the quality and precision of the machined hole while effectively reducing cumulative errors and secondary clamping errors.

Elimination of Spindle Runout: Using a floating reamer holder can eliminate radial runout of the lathe spindle. The reamer holder's center remains consistent with the center of the machined hole, resulting in smoother machining processes and improved boring accuracy. Additionally, it contributes to extending the tool's lifespan.

Increased Production Efficiency: The use of floating reamer holders can save time on calibration, tool changes, and other auxiliary tasks, ultimately boosting production efficiency. This, in turn, helps reduce production costs and enhances overall process efficiency.

Specification Parameters   Table for floating reamer holder
Model	Clamping Range	A	B	C	D	E	F	Floating Amount
C10-ER11M	1-8mm	77	42	10	16	15	25	0-0.5
C16-ER11M	1-8mm	77	42	16	16	15	25	0-0.5
C20-ER11M	1-8mm	77	42	20	16	15	25	0-0.5
C22-ER11M	1-8mm	77	42	22	16	15	25	0-0.5
C25-ER11M	1-8mm	77	42	25	16	15	25	0-0.5
C12-ER16M	1-12.5mm	90	42	12	28	20.3	34	0-0.8
C16-ER16M	1-12.5mm	90	42	16	29	20.3	34	0-0.8
C20-ER16M	1-12.5mm	90	42	20	28	20.3	34	0-0.8
C22-ER16M	1-12.5mm	90	42	22	28	20.3	34	0-0.8
C25-ER16M	1-12.5mm	90	42	25	28	20.3	34	0-0.8
C16-ER25UM	1-20.2mm	113.5	48	16	42	32	52	0-1
C20-ER25UM	1-20.2mm	113.5	48	20	42	32	52	0-1
C25-ER25UM	1-20.2mm	113.5	48	25	42	32	52	0-1

Floating Reamer Holder Speed and Cutting Speed Reference Table
Model		（Carbon Steel≦0.20%）	0.25-0.4% Carbon   steel, 41xx Steel, FCD	45%≦Carbon Steel, SKDI,   CU	SUS	SC	FC, C2XXX-CAC2XX,   ADC
ф1-ф2	min/rpm	800-1000	600-800	400-600	500-700	400-600	1000-1200
	F	0.05-0.07	0.04-0.06	0.04-0.05	0.04-0.06	0.04-0.05	0.06-0.08
ф3-ф4	min/rpm	600-800	400-600	300-400	500-600	400-500	800-1000
	F	0.06-0.07	0.05-0.06	0.04-0.05	0.04-0.05	0.04-0.05	0.07-0.08
ф5-ф6	min/rpm	500-700	400-500	200-300	400-500	300-400	700-900
	F	0.07-0.08	0.06-0.07	0.05-0.06	0.05-0.05	0.05-0.06	0.07-0.08
ф7-ф8	min/rpm	500-600	350-400	200-300	350-400	300-400	700-800
	F	0.07-0.09	0.06-0.07	0.05-0.06	0.05-0.06	0.05-0.07	0.07-0.09
ф9-ф10	min/rpm	400-500	300-350	150-200	200-300	200-300	600-700
	F	0.08-0.1	0.07-0.08	0.06-0.08	0.06-0.08	0.08-0.1	0.01-0.12
ф11-ф12	min/rpm	300-400	200-300	100-150	100-200	150-250	500-600
	F	0.1-0.12	0.08-0.1	0.07-0.1	0.08-0.1	0.1-0.12	0.12-0.15
ф13-ф14	min/rpm	200-300	150-250	100-150	100-150	150-200	400-500
	F	0.12-0.15	0.1-0.12	0.1-0.12	0.1-0.12	0.12-0.15	0.15-0.18
ф15-ф16	min/rpm	150-250	150-200	100-150	100-150	100-150	300-400
	F	0.12-0.18	0.1-0.15	0.1-0.12	0.1-0.15	0.15-0.18	0.15-0.2
ф17-ф18	min/rpm	150-200	100-150	100	100	100	200-300
	F	0.15-0.2	0.15-0.2	0.12-0.15	0.12-0.15	0.16-0.2	0.18-0.22
ф19-ф20	min/rpm	100-150	100	100	100	100	100-200
	F	0.18-0.25	0.18-0.25	0.15-0.2	0.15-0.2	0.2-0.25	0.2-0.3