Every dovetail milled, every soft jaw cut, every setup dialled in twice — that is spindle time spent on holding the part instead of making it. We supply the German-engineered clamping that takes that work off the machine, plus the fixturing, clamps and locating hardware that keep a setup repeatable — and on the lathe side, Samchully power chucks that cut jaw changes and jaw boring down to minutes.
German-engineered workholding from HWR — two ways to stop losing time and envelope to the fixture. SOLIDStamp moves clamping prep off the machine entirely; INOFlex VL clamps round, cubic and irregular parts concentric in one chuck.
A stamping station presses a defined tooth contour into the blank under high pressure. The part then clamps by form fit rather than friction — so the force-intensive work happens outside the machine, in non-productive time, and the vise can stay slim and accessible.
A conventional chuck drives every jaw around a common centre, so anything that isn’t round is over-determined — it clamps on two points and racks. The INOFlex drive moves on two parallel axes with the opposed slides linked, so all four jaws compensate. Round, square, rectangular and genuinely irregular parts all clamp concentric to the rotary axis, and thin-wall parts clamp without being squeezed out of shape.
Video courtesy of HWR Workholding USA · watch on Facebook
On a turning center, the chuck is where changeover time hides — pulling jaws, boring soft jaws on a ring or slug, dialing back in. Samchully has built power chucks, cylinders and lathe workholding since 1975, and two of their chucks go straight at that lost time. We supply the full Samchully line and help you size the right chuck for the spindle.
A standard power chuck needs a separate boring ring or slug every time soft jaws are cut — extra parts, extra setup, and a hand in the machine. The JB chuck has the boring ring built in: a rotating sleeve aligned with the master jaws, so jaws are bored right on the spindle. It drops in where a standard HS or MH series chuck mounts today.
Rotating sleeve · JBM-310Samchully’s proprietary rotating sleeve is aligned with the chuck’s master jaws, so soft jaws are bored on the chuck without a conventional boring ring or slug. Samchully rates it at up to 90% less downtime, by cutting out the calculations and adjustments jaw boring usually takes.
JBM-308No boring rings to buy and no pre-machined slugs to make, store and find. A standard hex-head Allen wrench is the only tool needed to bore the jaws. The design is patented (Samchully patent No. 10-2582103).
Scale & witness markA laser-etched scale on the chuck face and a witness mark on each soft jaw line all three jaws up on the same serration pitch, so setup is read off the chuck instead of counted by eye.
JB chuck · automated cellBoring jaws on a standard power chuck needs a person at the machine, which is what keeps most chucks out of automated cells. On the JB the boring step can be automated, so it stays inside the automated cycle.
Put in your own numbers. Samchully’s published figures are used as the starting point for the new-chuck times — change them if your floor is different.
An estimate for planning, not a quote. New-chuck defaults come from Samchully’s published specs: QJC jaw changes under one minute, and JB bore increments of 0.1 mm versus a 1.5 mm serration pitch.
Adding a 4th or 5th axis to a mill? See Samchully rotary tables & trunnions.
Form-fit workholding pays off hardest on a 5-axis trunnion, where every bit of collision contour costs you reach. Our machinery side runs ten vertical machining centers — GEN MILL 3-axis, 5-axis trunnion and double-column bridge, plus the Hasegawa PM320-5X — from 12.59″ to 63″ of X travel, and quotes the workholding with the machine. Tooling & accessories on LOMA.
Fighting stockouts, chasing cycle time, tired of a 1-800 catalog, or sizing up new machine capacity? Start a conversation with the independent team that handles all of it.
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Call us directly: 978·356·2500