Telephone: +44 (0)1794 514445
Email: sales@theencodercompany.co.uk

 

Heavy Duty Encoders

Incremental

The Hengstler Heavy Duty range of incremental encoders include 7 models designed for extreme conditions and harsh duty. These rugged devices will operate between -40°C and +100°C, have high shock and vibration resistance, with wash down resistant stainless and nickel plated versions. There are hollow and solid shaft heavy duty encoders.

Hengstler heavy duty encoders include ATEX and NEMA approvals. Not every heavy duty encoder has ATEX approval. To help you select the correct encoder for your application we have summarised ATEX options in the table below. ATEX approval of Hengstler encoders limits the maximum temperature to 80°C and requires electrical connections to be ATEX approved.

Key summary data for each encoder is shown on this page on the right to enable you to select more technical data. The chart below may help.

Body Size *	Shaft	Resolution ppr	ATEX Options	Stainless Options	100°C	Series
47.5mm	Solid 10mm	1-3600	✔	✔	✔	HD20
67.3mm	Solid 10mm	1-5000	✔	✔	✔	HD25
90.2mm	Hollow 10/12.7mm	1-3600	✔	✔	✔	HSD25
90.2mm	Hollow 1¼"	1-2500	-	-	✔	HSD35
95.2mm	Hollow 1"	15-5000	✔	✔	✔	HSD37
96.5mm	Options	15-5000	-	-	✔	HSD38
3.75"	Solid 1" thread	15-5000	✔	✔	✔	DWD38

* Body size : Just a guide, please see data sheets.

Other Hengstler ATEX incremental encoders are available and a full list is shown in the ATEX pages of this site.

Heavy Duty Encoders are used for position feedback and motor control in harsh environments. Examples include drawworks, topdrive and pipe handling in the oil industry, wind power plants (pitch control), gantry cranes, presses and offshore rigs. In these instances an encoder may require special surface treatment and protection seals, extreme operating temperature ranges, and high shock & vibration resistance. Encoder specification also has to consider radial load, speed, bearing life and electrical isolation. Control communication protocols can confuse the unwary! The list of heavy duty encoders shown here is an introduction. Contact The Encoder Company for help in specifying the right product which may be available as an option not shown as standard.

Heavy Duty Encoders
Absolute

The Hengstler Absolute Encoder range includes models designed for standard industrial applications, advanced bus interfaces, and special products for high ambient temperatures. These are shown elsewhere on this site, and are included on the part numbers list.

One product stands out as a heavy duty absolute encoder because of it's ruggedness. The Hengstler AR62/63, sometimes known as the ACURO-XRobust has high radial load and shock resistance specifications, heavy duty bearings and is fully submersible. It is rated for us in ambient temperatures of -40°C to +100°C as standard.

Hengstler heavy duty incremental encoders shown on this page are branded NorthStar in certain parts of the world.

Hengstler HD20 Series Solid Shaft Encoders
Approx 47.5mm x 52.3mm 10mm shaft
1-3,600 ppr (specify on order)
5-26VDC or ATEX 5VDC or ATEX 7-26VDC
Max Speed 6,000 rpm.
Nickel or Stainless Steel versions.
-40°C to +100°C (+80°C ATEX)
IP66/67, NEMA 4X, NEMA 6P, ATEX II
164Kb PDF

Hengstler HD25 Series Solid Shaft Encoders
Housing 67.3mm x 67.3mm 10mm shaft
1-5,000 ppr (specify on order)
5-26VDC or ATEX 5VDC or ATEX 7-26VDC
Max Speed 6,000 rpm.
Nickel or Stainless Steel versions.
-40°C to +100°C (+80°C ATEX)
IP66/67, NEMA 4X, NEMA 6P, ATEX II
160Kb PDF

Hengstler HSD25 Series Solid Shaft Encoders
Housing 90.2mm x 90.2mm 10mm/12.7mm shaft
1-3,600 ppr (specify on order)
5-26VDC or ATEX 5VDC or ATEX 7-26VDC
Max Speed 3,600 rpm (peak 6,000).
Nickel or Stainless Steel versions.
-40°C to +100°C (+80°C ATEX)
IP66/67, NEMA 4X, NEMA 6P, ATEX II
180Kb PDF

Hengstler HSD35 Through Hollow Shaft Encoders. 1¼" Max Shaft Dia
Housing 90.2mm x 90.2mm approx.
1-2,500 ppr (specify on order)
4.5 - 26VDC
Max Speed 3,600 rpm
-40°C to +70°C (or 0°C to +100°C)
IP65 or NEMA 4 (Not ATEX, Not Stainless)
156Kb PDF

Hengstler HSD37 Series Hollow Shaft Encoders (up to 1")
Housing dia 92.5mm
15-5,000 ppr (specify on order)
5-26VDC
Max Speed 3,600 rpm (peak 6,000)
+40°C to +100°C (+80°C ATEX)
IP66/67, NEMA 6, ATEX II
Anodized Aluminium or Stainless
176Kb PDF

Hengstler HSD38 Series Hollow Shaft Encoders
Housing dia 96.52mm
15-5,000ppr (specify on order)
5-26VDC
-40°C to +100°C
Anodized Aluminium Housing IP66/67 NEMA 6 (Not ATEX, Not Stainless).
229Kb PDF

Hengstler DWD38 Series Solid Shaft (threaded) Encoders
Housing dia 3.75 inches
15-5,000 ppr (specify on order)
5-26VDC
Max Speed 3,600 rpm (peak 6,000)
-40°C to +100°C (+80°C ATEX)
Nickel or Stainless Steel Versions
IP66/67, NEMA 7, ATEX II
160Kb PDF

Hengstler AR62/63 Series Absolute Encoders Single Turn
Solid Shaft, 10mm/12mm
Housing dia 58mm
12 Bit Single Turn Resolution
10-30VDC
Max Speed 5,000 rpm
-40°C to +100°C
Aluminium or Stainless Steel Versions
IP67 or IP69K (Submersible)
SSI, BiSS, or CANopen 389Kb PDF