HQC® Quick-Change Collets
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HQC > QUICK-CHANGECOLLET SYSTEMS > TURNING MILLING GRINDING WORKHOLDING size="-1">

Chuck-Style CNC lathes with A2-5 and A2-6 spindles use the spindle mount design with a draw bar adapter which can be machined to mate with the machineΒs draw bar. The customer can machine the draw bar adapter, or Hardinge will do it for a nominal charge. (Form on page 9) Multi-spindle automatic screw machines require no spindle mount and use the solid body draw collet. Hardinge collet-ready lathes with A2-5, A2-6 and A2-8 spindle configurations use the spindle mount design with a solid body draw collet. See Page 6 See Page 4 > See Page 5 There is no need to sacrifice speed for accuracy....

There is no collet shank. Therefore, the collet segments remain parallel to the stock even when there are variations in the stock size. Parallel clamping minimizes stock push back" and requires less draw bar force to achieve the same gripping capability as conventional collets. Since solid collets and master collets are of a one-piece construction, considerable force is required to flex the leaves of a solid collet and bring the gripping surface in contact with the workpiece OD. Because there are no leaves in the HQC system, additional gripping pressure is directly applied to the workpiece....

SpindleMountAdapter Spindle ColletHeadCollet Body SpindleMountSpindle DBCA > Collet Body ColletHeadCollet Body Optional Work Stops on Page 7. > SpindleMount Key ScrewBalance Screw > HQC-GT 4505-00-00 > 5 עD > 16 " to 1.062" > 5 ⁄ > 16 " to 1.062" > 5 ⁄ > 16 " to > 7 ⁄ > 8 " > 5 ⁄ > 16 " to > 3 ⁄ > 4 " ST-0000575-A2 ST-0000575-A 7777 A2-4 (7.93 to 26.98) (7.93 to 26.98) (7.93 to 22.22) (7.93 to 19.05) HQC-42 16C 2005-00-00 > 5 ⁄ > 16 " to 1.750" > 5 ⁄ > 16 " to 1.750" > 5 ⁄ > 16 " to 1 > 1 ⁄ > 2 " > 5 ⁄ > 16 " to 1 > 1 ⁄ > 4 " ST-0000575-E1 ST-0000575-E 7779 A2-5 (7.93 to 44.45) (7.93 to...

SpindleMount Spindle ColletHead AdapterDraw Bar Optional Work Stops on Page 7. > Note: Brackets indicate quantity required Includes:(3) Slot/Seal Inserts (6) Nylon Retaining Plugs HQC-42 2005-00-00 > 5 ⁄ > 16 " to 1.750" > 5 ⁄ > 16 " to 1.750" > 5 ⁄ > 16 " to 1 > 1 ⁄ > 2 " > 5 ⁄ > 16 " to 1 > 1 ⁄ > 4 " ST-0000575-E1 ST-0000575-E 7779 A2-5 (7.93 to 44.45) (7.93 to 44.45) (7.93 to 38.10) (7.93 to 31.75) *0942-00-00 HQC-65 2019-00-00 > 5 ⁄ > 16 " to 2.559" > 5 ⁄ > 16 " to 2.559" > 5 ⁄ > 16 " to 2 > 5 ⁄ > 32 " > 5 ⁄ > 16 " to 1 > 3 ⁄ > 4 " ST-0000575-F1 ST-0000575-F 7779 A2-6 & A2-8 (7.93 to...

ColletHeadCollet Body Rated Capacity Seal Collet Head /Plug Part Number Round Smooth Round Serrated Hexagon Square Kits > Manual Collet WrenchHydraulic Collet Wrench Hydraulic Power Unit Required. Order Part No. STA-0009189-01. 4501-00-00 > 5 ⁄ > 16 " to 1" > 5 ⁄ > 16 " to > 15 ⁄ > 16 " > 5 ⁄ > 16 " to > 7 ⁄ > 8 " > 5 ⁄ > 16 " to > 11 ⁄ > 16 " 7777 4503-00-00 > 5 ⁄ > 16 " to > 7 ⁄ > 8 " > 5 ⁄ > 16 " to > 13 ⁄ > 16 " > 5 ⁄ > 16 " to > 3 ⁄ > 4 " > 5 ⁄ > 16 " to > 5 ⁄ > 8 " 7777 4505-00-00 > 5 ⁄ > 16 " to 1 > 1 ⁄ > 4 " > 5 ⁄ > 16 " to 1 > 3 ⁄ > 16 " > 5 ⁄ > 16 " to 1 > 1 ⁄ > 16 " > 5 ⁄ > 16 "...

Note: Brackets indicate quantity required. A standard 3/8" drive manual ratchet wrench is required but not furnished. Assembly / Parts List Item HQC-GT Part No. HQC-42 Part No. HQC-65 Part No. Manual Wrench Assembly: ST-0000575-A ST-0000575-E ST-0000575-F ח Arm 1 ST-0000459-01 ST-0000459-06 ST-0000459-08 Pins [3] 2 5-0002024 CD-0004642 CD-0004642 ח Shell 3 ST-0009262-01 ST-0009262 ST-0009262-02 > 11 3 18 2 Description Item Part Number ֗ Button Head Cap Screw [3] 16 0300310 Socket Head Cap Screw [3] 11 0100628 ח Threaded Adjuster 17 ST-0000494 Threaded Insert 18 ST-0012034 ח Molylube...

Yes & No. When gripping parts that are longer than > You quickly replace the seal and the plug that holds it in. With other brands of > Use the same schedule recommended by your machine tool builder. The seals on the HQC > The operating range is > 1 ѢD > 64 " (.393mm) for under a 2" diameter, and > 1 ѢD > 32 " for a 2" diameter and over, when used on multi-spindle automatics for bar stock work. The operating range of the collets when used on CNC lathes is -1/64" (.393) to +.008" (.20mm). Note that the best grip is with a full bearing, which is at the rated size of the collet. As the stock...

Hardinge Style ӓB" feed fingers and pads are the most practical feed fingers for high production bar machining. Designed and manufac- tured to be the most reliable on the market today, they offer many advantages over other styles. > There are no screws or pins to hold pads in place. Pads cannot come loose and they offer full bearing on the bar stock. > Pads are stocked in round, hexagon, and square shapes, in a variety of materials and sizes. > The versatility of a master feed finger can be increased by the purchase of inexpensive pads in a variety of sizes and shapes. B > 1 to B35 sizes in...

Spindle Tooling for Manual & CNC LathesCollets for Automatics, Turret Lathes & Rotary Transfer Machines Swiss-Type Collets, Guide Bushings & Barloader Collets HQC > Quick-Change Collet Systems Sure-Grip > ή Expanding Collet SystemsHCAC > Collet Adaptation ChucksSure-Grip > ή 3-Jaw Power ChucksChuck JawsToolholder Collets, Bushings & Tool Holders Precision CNC Tooling for MillsCollet BlocksRotary Indexing ProductsCustom WorkholdingIndustrial ProductsMachine Tools > Hardinge manufactures workholding for all brands of lathes, mills, grinding machines, automatic screw machines, rotary transfer...