Snap-on TQSSC4FUA Torque Driver, Torqometer U.S./Metric Stubby Follow-up Dial, 50 in-lb / 56 kg·cm, 1/4″ Drive

Description

Robot arms move fast, stop hard and repeat the motion millions of times. Every joint cover, servo flange and gripper plate depends on screws that keep their clamp under that load. The Snap-on TQSSC4FUA torque driver helps robot integrators check those screws on a dial. This short Torqometer pairs a U.S./metric dial with a follow-up needle.

Robot cells and the Snap-on TQSSC4FUA torque driver

Integrators in Vietnam build welding, palletizing and pick-and-place cells around arms from Japan, Europe and Korea. During a build or a gearbox swap, the tech refits motor flanges, cable clamps and end-of-arm tooling. Next, each screw goes to the value in the arm maker’s manual. The second needle then holds the peak, so the tech can log it even in an awkward pose.

TQSSC4FUA in the U.S./metric table

The Combination US/Metric driver chart in Snap-on’s CAT1500i is the source for each value here. Its full-length twin, the TQSC4FUA, measures 8-11/16 inches. The same table says a C added to the stock number orders a certificate of calibration. So this base code ships without one.

Sockets through the TQSSC4FUA handle

The square drive in the handle opens up more fastener types. For example, a short hex bit holder reaches socket head cap screws on a servo flange. Also, a small socket fits nuts on a cable bracket. However, keep the stack short, because every adapter adds play and makes the needle less steady.

Matching the TQSSC4FUA range to joint hardware

Snap-on holds this grade to 2% of reading once the needle passes 20% of full scale. Here, that point sits at 10 in-lb, or about 11 kg·cm. So the Snap-on TQSSC4FUA torque driver suits targets from there to 56 kg·cm, roughly 5.5 N·m. For light sensor brackets, the TQSSC2.5FUA reads to 30 in-lb. Meanwhile, the TQSSC6FUA covers values up to 75 in-lb.

Order a Snap-on TQSSC4FUA torque driver

Lost in HCM supplies this driver and prepares the price. For a robot service kit, request a quote from Lost in HCM. SMK Vietnam also lists more torque screwdrivers in the same family. For maker data, visit snapon.com, or contact SMK Vietnam for help.

TQSSC4FUA robot integrator FAQ

Will the TQSSC4FUA reach screws inside a robot wrist?

Often, yes, because the stubby body is only 5-1/4 inches long. In very tight wrists, pair it with a short bit holder in the handle drive.

Should I drive gripper screws with the TQSSC4FUA or only check them?

Use it for final torque and audits. Run screws down by hand first, then bring each one to the value on the dial.

Why does a robot tech need kg·cm on the TQSSC4FUA?

Many arm and servo manuals from Japan state screw torque in kgf·cm. A dial that shows kg·cm next to in-lb skips a conversion step.