New and Latest Products from Northfield

AIR RESERVOIR TANK

AIR RESERVOIR TANK

New safety air reservoir tank.
Its purpose is to feed an air chuck with a reserved air supply should you encounter a loss of shop air. This system can keep your chuck in the clamped position for up to 20 minutes (depending on conditions). The system includes a check valve, a filter-regulator unit, and a three gallon air tank with a safe operating pressure of up to 150 psi; unit is burst tested up to 300 psi.

TWO IS BETTER THAN ONE

TWO IS BETTER THAN ONE

Picture illustrates one Northfield DPH1000W, 10-inch diaphragm chuck capable of locating and clamping two work pieces with different location data. Due to production requirements, end-user requested quick and accurate changeover between the work piece numbers. The chuck was manufactured with special stepped top-jaws that could locate and clamp both work pieces without changeover. For end-to-end location difference between the work pieces, the chuck was manufactured with a master axial locator, incorporating a “button” style stop used for changeover. With replacement of only the button stop, the changeover was quick, accurate and repeatable.

HOLD ON...ANYWAY YOU WANT

HOLD ON...ANYWAY YOU WANT

Special high powered internal grip collet chuck to hold castings for milling and drilling. Chuck
is spring clamp/air release. Quick change collets and stops allow for easy, fast change over for 10 different work pieces.

PROVIDING A CUSTOMER A SURE GRIP

PROVIDING A CUSTOMER A SURE GRIP

This is our Northfield Model 1000 Sliding-Jaw Air Chuck (0.0001” TIR) with special Top Tooling and Axial Locator. Our customer is a gauging company that needed to grip a small area of a large casting so they can check O.D. run-out of their part. Special, tall top-jaws are diamond-coated for a secure grip on the casting. We used an Axial Locator with button pads as a resting surface for the part’s flange while swallowing the rest of the part.

SMALL COLLET CHUCK

SMALL COLLET CHUCK

Special 6-inch diameter internal-grip collet chuck to grip transmission component for milling.
Chuck has “air-detect” part seat sensing and is shown on an adapter to mount chuck to a
vertical machining center. Collet is designed to have no pull back or lift.
Chuck is air-actuated with built-in, self- contained air cylinder.

SPECIAL INTERNAL GRIP COLLET CHUCK

SPECIAL INTERNAL  GRIP COLLET CHUCK

Specialized internal grip collet chuck with pull-down action and air-detect part seat sensing.
The pull-down action and air-detect sensing ensure that the part is seated properly before the machine cycle starts. Chuck is used on a vertical machining
center for rough and finish milling.



THE DAILY GRIND

THE DAILY GRIND

This is a special version of our Northfield DPH-400 Diaphragm Chuck (.000010” TIR) with custom top tooling attached.
Our customer needed a drawbar-actuated chuck to grip the O.D.’s of various parts they manufacture for their grinding operations. We provided them with a one-chuck solution (shown in that allows for easy changeover of the top tooling components to accommodate all of their parts.
One part even required a spring-ejector cartridge to eject the part from the jaws’ grip after the grinding operation is completed.
A gauge ring permanently mounted to the chuck establishes a known datum for their machining process. It also has a special shell protecting the unexposed portion of their parts from the action of the grinding process.

UPSIDE DOWN

UPSIDE DOWN

Shown is our Northfield DPH-500 Diaphragm Chuck (.000010” TIR) with special extended Top Jaws and Hard Stop.
Our customer needed to grip the O.D. of a funnel-shaped part, upside-down, on their O.D.’s. We held face run out better than .0001” TIR on the annular face of the Hard Stop, which was their critical requirement.
Northfield Precision designs and manufactures the world’s most accurate air chucks for any lathe, boring machine, grinder or VMC. Models include through-hole, high-speed and quick-change. Chucks are available in SAE or metric, in sizes from 3” (76mm) to 18” (457mm). Accuracies of 0.001” to 0.00001” (0.254m) are guaranteed. Custom work holding chucks and jaws are available and FREE engineering assistance is offered.

EIGHT IS ENOUGH

EIGHT IS ENOUGH

Special hydraulically-actuated, internal-grip collet chucks for automotive applications.
Eight (8) chucks mount on a pallet in a vertical machining center and grip automotive parts for drilling.
Chucks are only 3-inches in diameter but deliver up to 1,200 lbs. of draw force. Collets repeat to 1/10,000 T.I.R and pull the part onto the center hard stop.

GO AHEAD… HAVE A BALL

GO AHEAD… HAVE A BALL

This is an internal-grip collet chuck Northfield made for a major manufacturer of ball valves to clamp the I.D. of their valve balls. This is a dead-length collet with a removable split-part stop (part stop is made into two pieces and hinged) to locate the back-side of the work piece. The collet is removed after clamping and prior to grinding of the work piece.
This chuck is used in a valve ball grinder. The customer needed to locate/stop the ball axially on the chuck. So Northfield provided a removable spacer (locator/stop) behind the ball (between the ball and chuck) for axial location. The locator needed to be removable to allow the grinding wheel (cup) access around the top and bottom of the ball.

SPECIAL DRIVESHAFT BALANCE FIXTURES

SPECIAL DRIVESHAFT BALANCE FIXTURES

These custom chucks use a special expanding collet to center the drive-shaft end, and (3) or (4) fingers go through the bolt holes, expand and face clamp.

TWO MOVING JAWS

TWO MOVING JAWS

Introducing our Model 870 Sliding-Jaw Air Chuck (.0001 TIR). This air-actuated chuck has two moving jaws for gripping square or rectangular parts. In this custom application, our customer requested Vee-Block type jaws to accommodate a range of drill sizes with each set of Insert Pads. The drill tip (not shown) stops on the axial locator (mounted to the face of the chuck), and the Insert Pads (mounted in their subjaws) clamp down on the OD of each drill while they grind its shank.
The Insert Pad and Subjaw arrangement allow for quick changeover from size to size.

SPECIAL INTERNAL GRIP COLLET CHUCK

SPECIAL INTERNAL  GRIP COLLET CHUCK

Specialized internal grip collet chuck with pull-down action and air detect part seat sensing.
The pull-down action and air detect sensing ensure that the part is seated properly before the machine cycle starts. Chuck is used on a vertical machining center for rough and finish milling.


SPECIAL 5 IN. DIAPHRAGM

SPECIAL 5 IN. DIAPHRAGM

<div style="display:none">fiogf49gjkf0d</div>Special 5 inch diameter diaphragm chuck with morse taper number-three female bore for locators. Chuck has built in pneumatic hammer to expel morse taper locators. The diaphragm will center the work piece and pull it into a hard stop.
The MT-3 type stops are hardened and ground to 60/63 RC. These stops are ground between centers on a Tschudin grinder to guarantee they will run dead. A brazed solid carbide post locates the 60 deg. internal angle of nozzle. To remove the stops, an internal pneumatic hammer is actuated to pop them out.

MODEL 1025 AIR CHUCK

MODEL 1025 AIR CHUCK

<div style="display:none">fiogf49gjkf0d</div>This is a Model 1025 Air Chucks used to grip on the pitch diameter of a large ring gear. A pin cage with integral axial locator is mounted to the chuck face as a subassembly. When accomplished, the jaws push the pins inward to grip the gear’s pitch diameter.

MODEL 700 - 7" DIAMETER. 3-JAW

MODEL  700 - 7" DIAMETER. 3-JAW

<div style="display:none">fiogf49gjkf0d</div>This is a Northfield model 700 (7in. dia. 3-jaw) air chuck with special jaws that grip a short diameter of the automotive “hub” to drill and chamber the 5 holes. A special stop mounted to the chuck face has “air detect” holes for part seating confirmation. The stop is contoured and relieved to allow a chamfering tool to break the edge on the banking surface of the work piece.

SPECIAL MODEL XP-450

SPECIAL MODEL XP-450

<div style="display:none">fiogf49gjkf0d</div>Special Northfield model XP-450 (.0001” T.I.R.) vise chuck. This package includes custom top jaws, a hardened and ground axial locator/ part stop, and a custom adapter plate to mount the above chuck to a Tsudakoma rotary table.

SPECIAL MODEL 6100

SPECIAL  MODEL  6100

<div style="display:none">fiogf49gjkf0d</div>Special Northfield model 6100 (.0005 T.I.R.) 6.42 dia., 3-jaw air chuck with 1 in. jaw stroke (.500” per jaw). This chuck was designed with special jaws to grip customer's sprocket. The 6100 special jaw blanks are different from the Northfield standard 6 inch series. The adapter plate will also be different from a standard Northfield 6 inch chuck. The air tube, rotary union, operating valve and regulator are the same as all other Northfield chucks.

MODEL 650 SPECIAL PULL-DOWN JAWS

MODEL 650 SPECIAL PULL-DOWN JAWS

<div style="display:none">fiogf49gjkf0d</div>This is a Model 650 Air chuck with special pull-down jaws and axial locator. The ID-Gripping jaws have a wire-cut slot that allow them to flex. When the jaws are actuated and come in contact with the part’s ID, they start to flex. As this continues, they pull the part down and onto the axial locator which acts as a dead stop.

MODEL DPH-600W

 MODEL DPH-600W

<div style="display:none">fiogf49gjkf0d</div>This is a model DPH-600W (6 in. dia. 6-jaw) diaphragm chuck with special jaws to grip and automotive “hub” for drilling. The jaws grip the part and “pull” it onto the large stop. Slots in the stop allow a chamfering tool to pass through the hole and chamfer the underside. Three (3) “air detect” holes in the stop face are used for part seating conformation.

SPECIAL COLLET CHUCK

SPECIAL COLLET CHUCK

<div style="display:none">fiogf49gjkf0d</div>This is a 3 in. diameter hydraulically actuated internal grip collet chuck that mounts on a tilting table to drill an angled hole. A fixed stop pad picks up the inner face of this automotive work piece while the chuck expands and pulls back to grip the part. Chuck repeats to 1/10,000 T.I.R. and have a low profile to fit (8) chucks on one table.

REDUCED WT. MODEL 1000

REDUCED WT. MODEL 1000

<div style="display:none">fiogf49gjkf0d</div>This is a standard Northfield model 1000 (10 in. dia. 3-jaw) air chuck modified to reduce extra weight. The chuck normally weighs about 60 lbs. We reduce the weight by 15 lbs by milling the face as shown.

AUTO RUBBER COUPLING

 AUTO RUBBER COUPLING

<div style="display:none">fiogf49gjkf0d</div>This is a special chuck to grip automotive “rubber coupling” drive shaft joints. The small collet in the center grips a 14mm I.D. to an accuracy of less than 1/10,000 in. T.I.R. The (3) extended fingers pass thru (3) bolt holes, and expand and “Face Clamp” only. These fingers simulate “Bolting” the flange in place the way it is used in the vehicles. Drive shafts are balanced from 3,500 rpm to over 6,000 rpm.

5-JAW/ 5 in. DIAPHRAGM (DPH-500-5) CHUCK

5-JAW/ 5 in. DIAPHRAGM (DPH-500-5) CHUCK

<div style="display:none">fiogf49gjkf0d</div>This is a unique 5-jaw/ 5 in. diaphragm (dph-500-5) chuck. It has serrated jaws to enhance the grip force and an axial locator with integral/ air-detect function to ensure positive loading of the customer’s part. The axial locator also has a tertiary datum locator to allow the part to be twisted into position upon loading.

5C COLLET CHUCK

5C COLLET CHUCK

Our new 5C collet chuck is interchangeable with our standard 4 inch chucks.
• Air Actuated
• Uses Northfields standard air feed tubes (wet or dry)
• Same bolt pattern as our standard 4 inch models
• All componenets hardened and ground to 58/63 R.C.
• All diameters ground within 1/10,000 T.I.R.
• Uses standard 5C collets
• Also accepts 5C expanding collets
• Can run at speeds in excess of 8,000 rpm

MODEL 450WHF CHUCK

MODEL 450WHF CHUCK

This chuck uses a special 4-port air tube (and special piston) to allow for open / close / autolube / air-detect functions.
The top plate (with pin) is a radial banking surface (side of pin only) which picks up the side of the customer’s part when it is loaded and twisted into position into the chuck.
The three small pads with tiny holes in the very center of the chuck are used to rest the part against tops of pads while the holes are used for the air-detect function TO indication that the part is loaded into the chuck.

SPECIAL 6 " JAW CHUCK

SPECIAL 6 " JAW CHUCK

This is a special 6 in. diameter 6-jaw chuck with ½” of jaw stroke on diameter and a ½” counter bore in the center.
The chuck has sub-jaws and inserts and a special air ejector that is spring return. This chuck was designed for Tiffany Co. You are correct, the Jewelry store. This chuck is used to make Gold and Platinum rings that are bar fed from the main spindle and finished in the sub-spindle on this Northfield chuck. The chuck is rated for 4,000 rpm with low profile jaws.



MODEL 425 1/4 JAW

MODEL 425 1/4 JAW

This is a standard model 425 (.0001 T.I.R) with ¼” jaw stroke to open enough to clear the sprocket and grip on the Qualified diameter (the part is shown up backwards in the photo). This is a special “Locking Nut” for M-16 rifles.
The I.D. gets hard turned.

MODEL 775W

MODEL 775W

This is a standard Northfield model 775W (.0001 T.I.R.) 7 in. dia., 2-jaw chuck with ¼” jaw stroke and coolant through. This chuck is mounted to a rotary table to drill and mill the above part. The coolant passage is used for
air detect in BOTH the jaws and stop. We milled the side of the chuck away to allow more tool clearance.
The part is the end of an over-head cam shaft for Ford.

SPECIAL 6" DIAMETER CHUCK

SPECIAL 6" DIAMETER CHUCK

<div style="display:none">fiogf49gjkf0d</div>This is a special 6 in. diameter chuck with 1 in. of jaws stroke on diameter. The jaws must open far enough to clear a shoulder before gripping the qualified diameter. The repeat ability is approximately .0005 T.I.R. (not as close as our standard chucks) because it uses a “Lever” mechanism instead of our “Center Wedge”. The rpm is also limited depending on the weight of the top jaws.

Ultra Precision Diaphragm Chucks Precision Air Chucks Standard Jaw Blanks Customized Sliding Air Chucks Customized Diaphragm Chucks Specialty Applications Chucks New and Latest Products from Northfield News Releases Engineering Information for Mounting Chuck Collet Chucks - Standard Collet Chucks - Custom
NORTHFIELD PRECISION INSTRUMENT CORP.
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