HL-40 Extended Shaft Concentricity Gage
Large-diameter, extended-shaft inspection for cylindrical components up to 24 inches long.
The Universal Punch HL-40 is an Extended Shaft Concentricity Gage with a Vertical Carrier for cylindrical components from 3/4–4 in (20–102 mm) in diameter and up to 24 in (610 mm) long.
It combines Universal Punch's large -40 diameter platform with the extended HL-series shaft architecture for precision rotational inspection of longer, larger components.
The 24-inch extended-shaft platform for the large -40 diameter class.
HL identifies Universal Punch's Extended Shaft Gage architecture. -40 identifies the large-diameter class. The Vertical Carrier positions the measurement indicator above the supported component.
The HL-40 is intended for applications that require both a large cylindrical component envelope and substantially more axial capacity than a conventional -40 concentricity gage.
Large diameter and long shaft length create a different inspection problem.
The HL-40 extends the large -40 shaft platform to a published maximum part length of 24 in / 610 mm.
Length changes the setup geometry.
As component length increases, the inspection setup must account for more than maximum diameter. The locations of usable support surfaces and the relationship between those surfaces and the feature being measured become central to repeatable rotational inspection.
Large-component capacity with an extended inspection envelope.
The public-facing Universal Punch catalog publishes the following core HL-40 specifications.
Support geometry should be selected from the actual component.
Current Universal Punch parts documentation identifies 140-40HS as the Full Plain Short Roller Set for the -40 H-family size class, with a published roller length of 1.0 in / 25 mm.
The same current documentation identifies 230-40, measuring 1 × 5/16 in (25 × 8 mm), as the standard top roller in the -40 family.
- support-journal diameter and width
- shoulder and flange clearance
- splines, threads, grooves and tapers
- shaft stiffness and overhang
- distance between support points
- location of the feature being inspected
Configure the measurement system around the feature and tolerance.
The HL-40 uses a Vertical Carrier to position the indicator above the supported component. Universal Punch publishes analog and digital indicators together with mounts, swivel supports, extensions and fine-adjustment accessories.
Use the accuracy classification actually published for the -40 platform.
Universal Punch documentation publishes Standard Black at better than or equal to 4 µm and states that its Concentricity Gaging Systems are calibrated and directly traceable to N.I.S.T.
Confirm indicator resolution, required calibration documentation and the final inspection configuration when requesting a quote.
Controlled rotation for extended large-shaft inspection.
Manual Timing-Belt Drive
Universal Punch describes a manual timing-belt pulley drive system for smooth component rotation during concentricity and runout inspection. Dedicated H/HL -40 timing-belt components are also published.
Support geometry, rotation and indicator contact should be treated as one complete inspection setup.
HL-40 Variable Speed Motor Assembly
29 in / 737 mm base plate
Published motorized system: 24 VDC · 0–10 rpm · variable speed · forward/reverse.
Universal Punch also publishes an international 110/220 VAC transformer for the 24 VDC system and an industrial foot-switch option.
Ask About Motorizing the HL-40 →Same diameter class. Different inspection envelopes.
HL-40 vs. H-40
| Feature | H-40 | HL-40 |
|---|---|---|
| Gage Architecture | Standard Shaft Gage | Extended Shaft Gage |
| Part Diameter | 3/4–4 in / 20–102 mm | 3/4–4 in / 20–102 mm |
| Maximum Part Length | 12 in / 305 mm | 24 in / 610 mm |
| Carrier | Vertical Carrier | Vertical Carrier |
| Published Shipping Weight | 11.2 lb / 5.1 kg | 29.5 lb / 13.5 kg |
View the H-40 Standard Shaft Gage →
HL-40 vs. G2-40
Side Checker Gage
3/4–4 in / 20–102 mm
Vertical Carrier · up to 8 in / 203 mm part length.
View G2-40 →Extended Shaft Gage
3/4–4 in / 20–102 mm
Vertical Carrier · up to 24 in / 610 mm part length.
HL Extended Shaft Family
| Model | Part Diameter | Maximum Length | Published Shipping Weight |
|---|---|---|---|
| HL-10 | 1/8–1 in / 3–25 mm | 24 in / 610 mm | 24.5 lb / 11.1 kg |
| HL-20 | 3/8–2 in / 10–50 mm | 24 in / 610 mm | 26.5 lb / 12 kg |
| HL-40 | 3/4–4 in / 20–102 mm | 24 in / 610 mm | 29.5 lb / 13.5 kg |
Configure the HL-40 in three engineering decisions.
Universal Punch describes its Concentricity Gaging System around three primary selections: the gage model, the main rollers/support geometry, and the indicator(s) plus accessories.
Common engineering questions about the HL-40.
What is the Universal Punch HL-40?
The Universal Punch HL-40 is an Extended Shaft Concentricity Gage with a Vertical Carrier for cylindrical components from 3/4–4 in (20–102 mm) in diameter and up to 24 in (610 mm) long.
What is the maximum part length for the HL-40?
The published maximum part length is 24 in (610 mm).
What diameter range does the HL-40 handle?
The customer-facing Universal Punch catalog publishes a diameter range of 3/4–4 in (20–102 mm).
What is the difference between the H-40 and HL-40?
Both serve large-diameter shafts up to 4 in and use Vertical Carrier architecture. The H-40 supports parts up to 12 in long, while the HL-40 extends the published maximum shaft length to 24 in.
What is the difference between the G2-40 and HL-40?
The G2-40 is a Side Checker Gage for parts up to 8 in long. The HL-40 is an Extended Shaft Gage for shafts up to 24 in long.
How much does the HL-40 weigh?
Published shipping weight is 29.5 lb (13.5 kg).
Does the HL-40 use a Vertical Carrier?
Yes. Universal Punch identifies the HL-40 as an Extended Shaft Gage with a Vertical Carrier.
What shaft-support roller set is published for the H/HL -40 class?
Current Universal Punch parts documentation identifies 140-40HS as the Full Plain Short Roller Set for the -40 H-family size class, with a published roller length of 1.0 in (25 mm).
What is the standard -40 top roller?
Current Universal Punch parts documentation identifies 230-40, measuring 1 x 5/16 in (25 x 8 mm), as the standard top roller in the -40 family.
Can the HL-40 use digital indicators?
Yes. Universal Punch publishes analog and digital test indicator options together with indicator mounts, swivel supports, extensions and fine-adjustment accessories.
What accuracy classification is published for the HL-40?
Current Universal Punch documentation publishes Standard Black at better than or equal to 4 microns (0.00016 in). Precision Gold is published for -10 and -20 model classes only, so it should not be represented as a standard published HL-40 classification.
Is the HL-40 NIST traceable?
Universal Punch documentation states that its Concentricity Gaging Systems are calibrated and directly traceable to N.I.S.T.
Can the HL-40 be motorized?
Yes. Universal Punch publishes Part No. 275-40, the HL-40 Variable Speed Motor Assembly, with a 29 in (737 mm) base plate.
What speed does the motorized HL-40 operate at?
The published variable-speed system is 24 VDC, 0–10 rpm, with forward and reverse control.
Send the print. We’ll help define the gaging configuration.
For an HL-40 application, Universal Punch can use the actual component geometry and measurement requirement to help determine support arrangement, Vertical Carrier position, indicator system, accessories and manual or motorized rotation.
- part drawing or CAD print
- overall shaft length
- maximum diameter
- support-journal diameters
- usable support widths
- distance between supports
- shoulders and flanges
- splines, grooves and threads
- inspection feature
- datum relationship
- tolerance and required resolution
- manual or motorized preference