ID Xpansion™ Clamp

Measurements Available: Inch, Metric

ID Xpansion™ Clamps

The ID Xpansion™ clamp is the ideal solution to hold parts on an inside diameter for high density machining on vertical or horizontal machining centers. It can also be used as an expanding mandrel on a lathe.

These machinable clamps are produced in 12L14 steel with black oxide coating in 12 sizes and can hold internal diameters from under 3/16 to almost 10 inches (4.1 to 254mm). #10 manufactured using 7075-T6 aluminum.

The flange diameter of the clamp is held to a close tolerance for precision locating in a machined pocket on work cubes and fixture plates.

The customer machines the mild steel clamp to match the bore of the part ensuring a proper fit. Often times the clamps can be remachined for different size jobs.

The low profile ID Xpansion™ Clamp can hold several parts in one compact area for secondary operations without any clamping interference. They are quickly tightened with a hex key, torque driver or can be mated to hydraulic pull cylinders for automation.

Low Profile
Ideal for Secondary Operations on lathe parts
Easily machined to size on lathe or mill
Excellent for palletized setups
Allows more parts per workcube or fixture plate
Heat-treated and coated screw for long life
Clamp body made of mild steel for machinability
Tighten with hex key or hydraulic pull cylinders
(Drill clearance hole for longer bolt into cylinder)
Longer screws available for hydraulic applications
Longer tapered screws available for each ID size
Tungsten Carbide coating can be added to increase holding force

Clamp Machining and Installation

Inch

Part Number	Model Number		A	B	C	D	E+.000 -.002	F	G+	H*	I	J	Torque (Ft/lbs.)	Holding Force (lbs)	Replacement Tapered Screws
31000	#00	CAD	.42	.30	.24	.12	.787	.29	.16	2-56 on .540 BHC	2-56 x 1/2	.16	0.5	250	31001
31050	#0	CAD	.86	.63	.59	.23	1.170	.49	.28	6-32 on .825 BHC	8-32 x 1	.30	3.6	950	31002
31100	#1	CAD	.98	.75	.59	.23	1.240	.56	.48	6-32 on .910 BHC	1/4-20 x 1 1/4	.50	13.3	1,900	31010
31150	#2	CAD	.98	.75	.59	.23	1.476	.79	.53	6-32 on 1.140 BHC	5/16-18 x 1 1/4	.56	27.6	2,500	31020
31200	#3	CAD	1.13	.88	.69	.25	1.968	1.06	.71	8-32 on 1.550 BHC	3/8-16 x 1 1/2	.71	49.3	4,500	31032
31250	#4	CAD	1.25	1.0	.81	.25	2.205	1.39	.90	8-32 on 1.790 BHC	1/2-13 x 1 1/2	.71	120.0	5,900	31042
31300	#5	CAD	1.56	1.25	1.06	.31	2.736	1.65	1.15	10-32 on 2.200 BHC	5/8-11 x 1 3/4	.79	224.0	10,000	31052
31350	#6	CAD	1.56	1.25	1.06	.31	2.972	2.03	1.15	10-32 on 2.515 BHC	5/8-11 x 1 3/4	.79	224.0	10,000	31052
31400	#7	CAD	1.79	1.48	1.27	.31	4.232	3.06	1.15	1/4-20 on 3.646 BHC	5/8-11 x 2	.79	224.0	10,000	31072
31450	#8	CAD	1.79	1.48	1.27	.31	5.232	4.06	1.15	1/4-20 on 4.648 BHC	5/8-11 x 2	.79	224.0	10,000	31072
31500	#9	CAD	1.79	1.48	1.27	.31	5.232	6.89	1.15	1/4-20 on 4.648 BHC	5/8-11 x 2	.79	224.0	10,000	31072
31550**	#10	CAD	1.79	1.48	1.27	.31	6.000	9.85	1.15	1/4-20 on 5.250 BHC	5/8-11 x 2	.79	125.0	6,000	31072

Metric

Part Number	Model Number		A	B	C	D	E+.000 -.050	F	G+	H*	I	J	Torque (N.m.)	Holding Force (N.)	Replacement Tapered Screws
38000	#00	CAD	10.7	7.6	6.1	3.0	20.0	7.4	4.1	M2 on 13.7 BHC	M2x12	4.1	.70	1,113	38001
38050	#0	CAD	21.8	16.0	15.0	5.9	29.72	12.4	7.1	M3 on 20.95 BHC	M4x25	7.2	5.00	4,228	38002
38100	#1	CAD	24.9	19.0	15.0	5.9	31.5	14.2	12.2	M3 on 23.1 BHC	M6x30	11.2	17.00	8,455	38010
38150	#2	CAD	24.9	19.0	15.0	5.9	37.5	20.0	13.5	M3 on 29.0 BHC	M8x30	13.2	34.00	11,125	38020
38200	#3	CAD	28.6	22.2	17.5	6.4	50.0	27.0	18.0	M4 on 39.4 BHC	M10x35	16.3	60.00	20,025	38032
38250	#4	CAD	31.8	25.4	20.6	6.4	56.0	35.3	23.0	M4 on 45.5 BHC	M12x40	20.3	150.00	26,255	38042
38300	#5	CAD	39.6	31.8	27.0	7.9	69.5	42.0	29.3	M5 on 55.9 BHC	M16x45	21.4	280.00	44,500	38052
38350	#6	CAD	39.6	31.8	27.0	7.9	75.5	51.5	29.3	M5 on 63.9 BHC	M16x45	21.4	280.00	44,500	38052
38400	#7	CAD	45.5	37.6	32.3	7.9	107.5	77.7	29.3	M6 on 92.6 BHC	M16x50	19.3	280.00	44,500	38072
38450	#8	CAD	45.5	37.6	32.3	7.9	132.9	103.0	29.3	M6 on 118.06 BHC	M16x50	19.3	280.00	44,500	38072
38500	#9	CAD	45.5	37.6	32.3	7.9	132.9	175.0	29.3	M6 on 118.06 BHC	M16x50	19.3	280.00	44,500	38072
38550**	#10	CAD	45.5	37.6	32.3	7.9	152.4	250.2	29.3	M6 on 133.35 BHC	M16x50	19.3	170.00	26,000	38072

G+ Minimum diameter the “F” dimension can be machined or turned down to.
H* – (3) Mounting Screws Included. (4) Mounting Screws Included with #9 & #10.
** – Clamp made from 7075-T6 aluminum stock.

MODEL #00 – #6 ID Xpansion™ Clamps

Expand ID Clamp approximately .002” to .003” (.075mm) above the relaxed diameter and machine to fit the workpiece bore on a lathe or milling machine.
If machining the ID Clamp on a lathe, use the supplied hex nut against the back of the flange to tighten the tapered screw. This nut is only used for machining the ID Clamp.
Machine a counterbore in the fixture for the “E” dimension flange. Drill and tap (D&T) the fixture for the mounting holes per column “H”. D&T thread “I” in the center of the counterbore for the Tapered Screw.
Maximum recommended expansion from fully relaxed for the #00 through #6 ID Clamps is as follows: #00 Ø.005” (Ø.13mm); #0 Ø.010” (Ø.25mm); #1 Ø.013” (Ø.33mm); #2 Ø.015” (Ø.38mm); #3 Ø.015” (Ø.38mm); #4 Ø.015” (Ø.38mm); #5 Ø.015” (Ø.38mm); #6 Ø.015” (Ø.38mm).

MODEL #7-10 ID Xpansion™ Clamps

A Locking Ring (LR) is provided to ensure the clamping segments are rigid for machining the ID Clamp to the workpiece bore size. The #9 and #10 ID Clamp is supplied with 2 Locking Rings so it can be machined/reused at a smaller size than the large Locking Ring will allow it to be used. Do not attempt to use the two Locking Rings simultaneously with these ID Clamps.
To machine ID Clamp, insert the LR and torque the Tapered Screw to approximately 40 ft./lbs. (55 Nm). Machine down to within +Ø.003 to +Ø.005” (+Ø.08mm to +Ø.13mm) over the low limit bore size of the workpiece. Loosen the Tapered Screw to remove the Locking Ring and test fitment with workpiece. If workpiece fitment is too tight, repeat the machining process to achieve as close a fit to the low limit size of the workpiece bore as is required/desired for the particular application.
Maximum recommended expansion from fully relaxed for the #7 through #10 ID Clamps is as follows: #7 Ø.015” (Ø.38mm); #8 Ø.015” (Ø.38mm); #9 Ø.020” (Ø.50mm); #10 Ø.080” (Ø2.0mm).

GENERAL NOTES: ID Clamps #00 through #9 are manufactured from 12L14 “Free Machining” low carbon steel. The #10 ID Clamp is manufactured from 7075-T6511 “High Strength” aluminum alloy. Aggressive material removal rates/practices are not recommended when machining ID Clamps “to size”. For blind hole applications, please see our Manual Actuators, or contact us for the availability of custom screws and other mounting/use options.

Applications

: @sutcliffe_mechanical – Trying out some ID clamps today. I was kinda scared. Not sure if the part was gonna move or not. Everything worked out great. Cant wait to use more of these in the future.

: @sutcliffe_mechanical – Trying out some ID clamps today. I was kinda scared. Not sure if the part was gonna move or not. Everything worked out great. Cant wait to use more of these in the future.

: Jonathan Rubio – MiteeBite Products Facebook Community – Thanks for the group add. This place is cool for inspiration. Heres an ID clamp fixture I’ve used in the past.