The HD25 is a rugged optical incremental shaft encoder designed for heavy-duty industrial applications. The housing, machined from a solid billet aluminum block...
HD25 Industrial Rugged Metal Optical Encoder
Please see the EM1 Component Change Notice.
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Overview
- NEMA size 25 package
- Anodized milled aluminum housing with O-ring housing seal
- LED and phased array wide-gap monolithic encoder technology
- ABEC 5 bearings
- 64 to 2500 cycles per revolution (CPR)
- 400 to 10000 pulses per revolution (PPR)
- 2 channel quadrature squarewave outputs
- Single-ended or differential outputs
- Optional index (3rd channel)
Product Specifications
| Parameter | Value |
|---|---|
| Size | NEMA size 25 |
| Housing and Cover Material | Anodized aluminum |
| Shaft Material | Stainless steel |
| Weight | 17 oz. |
| Shaft Diameter | 0.3748 in. (+0.0000 in. -0.0003 in.) |
| Shaft Optional Flat Size | .08 in. long x .03 in. deep |
| Max. Acceleration | 100000 rad / sec² |
| Max. Shaft Speed Non-sealed (mechanical) Sealed (mechanical) |
15000 rpm 6000 rpm |
| Shaft Torque Non-sealed Sealed |
< 0.5 in-oz 3.5 in-oz typical |
| Max. Shaft Load Axial Radial |
40 lb. 35 lb. |
| Max. Shaft Total Indicated Runout | 0.0003 in. |
| Bearings | ABEC 5 440 stainless steel with light preload |
| Bearing Life @ 4 Pound Load | 2.3 x 10^9 revolutions |
| Moment of Inertia | 2.8 x 10^-4 oz-in-sec² |
Product Description
The HD25 is a rugged optical incremental shaft encoder designed for heavy-duty industrial applications. The housing, machined from a solid billet aluminum block and finished with clear anodizing, conforms to the industrial standard size 25 package. Size 25 encoders are widely used and are considered to be the backbone of feedback devices found in factory automation and industrial applications. The HD25 will drop directly into existing applications to provide a superior solution at a competitive cost. The HD25 is a factory stock product with little or no lead-time.
Typical applications include:
- Automation, robotics, motion control, elevator controls, machine tools, food processing, X-Y tables and conveyors.
- Lathes, grinders, CNC machine tools, high performance servos, test equipment, packaging machines, balance machines and cutting machines.
- Web processing, rotary tables, transfer machines, stacker cranes, press controls, printing presses and pump controls.
- Oil field equipment, saw mill machinery and construction machinery.
Our absolute encoders may be used in many stand alone applications that do not require a PC interface. For these applications we provide detailed communications protocols for all of our absolute products (see the SEI Absolute Encoder Communications Protocol page).
Related
- PDF Data Sheet (262.31 KB)
- HD25 Nomenclature / Part Number Change
- Shaft Incremental Encoder Selector Guide
Manuals
Product Notes
- Cables and connectors are not included and must be ordered separately.
- US Digital warrants its products against defects in materials and workmanship for two years. See complete warranty for details.
Purchasing
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