PG Series
PG Series Positioning Guideway
- Block Type
- Square (H, L), Flange (W)
- Model Size
- 20 - 55
- Load Type
- Heavy, Super Heavy
- Dynamic Load Rating
- 27.1 [kN] - 184.9 [kN]
- Sensor Resolution
- Up to 1 [µm] (external digital sensors)
- Repeatability
- ±1 [µm] - ±10 [µm] (by sensor type)
- Measuring Length
- Up to 25 [m]
Hiwin's positioning guideway system integrates a linear guideway with a magnetic encoder. This solution offers the high stiffness and rigidity of a guideway while obtaining high precision from the magnetic encoder. The encoder is a non-contact measuring sensor and the magnetic strip is embedded to prevent possible damage caused from external materials. These features ensure a longer service life.
The measuring side of a PG axis is the Incremental Position Measurement System. The standard sensor S fits sizes 20–55 and external A, D and CD sensors fit sizes 20–45, all reading the magnetic scale embedded in this rail. View Incremental Position Measurement System →
Applications
- Oily, dusty and high-vibration environments
- High-humidity and high-temperature environments
- Long-travel position measurement (up to 25 m)
Variants
The second letter is the block type: PGHH square, PGHW flange, PGHL low-profile square (sizes 25-55 only). After the size, C is heavy load and H super heavy load; the final letter is the block mounting direction, A from the top, B from the bottom, C either (B and C mountings are catalogued for flange blocks).
| Part Number | Block Type | Model Size (mm) | Load Type | Dynamic Load Rating (kN) | Configure |
|---|---|---|---|---|---|
| PGHH20CA | Square | 20 | Heavy | 27.1 | Configure ↗ |
| PGHH20HA | Square | 20 | Super Heavy | 32.7 | Configure ↗ |
| PGHH25CA | Square | 25 | Heavy | 34.9 | Configure ↗ |
| PGHH25HA | Square | 25 | Super Heavy | 42.2 | Configure ↗ |
| PGHH30CA | Square | 30 | Heavy | 48.5 | Configure ↗ |
| PGHH30HA | Square | 30 | Super Heavy | 58.6 | Configure ↗ |
| PGHH35CA | Square | 35 | Heavy | 64.6 | Configure ↗ |
| PGHH35HA | Square | 35 | Super Heavy | 77.9 | Configure ↗ |
| PGHH45CA | Square | 45 | Heavy | 103.8 | Configure ↗ |
| PGHH45HA | Square | 45 | Super Heavy | 125.3 | Configure ↗ |
| PGHH55CA | Square | 55 | Heavy | 153.2 | Configure ↗ |
| PGHH55HA | Square | 55 | Super Heavy | 184.9 | Configure ↗ |
| PGHW20CA | Flange | 20 | Heavy | 27.1 | Configure ↗ |
| PGHW20HA | Flange | 20 | Super Heavy | 32.7 | Configure ↗ |
| PGHW25CA | Flange | 25 | Heavy | 34.9 | Configure ↗ |
| PGHW25HA | Flange | 25 | Super Heavy | 42.2 | Configure ↗ |
| PGHW30CA | Flange | 30 | Heavy | 48.5 | Configure ↗ |
| PGHW30HA | Flange | 30 | Super Heavy | 58.6 | Configure ↗ |
| PGHW35CA | Flange | 35 | Heavy | 64.6 | Configure ↗ |
| PGHW35HA | Flange | 35 | Super Heavy | 77.9 | Configure ↗ |
| PGHW45CA | Flange | 45 | Heavy | 103.8 | Configure ↗ |
| PGHW45HA | Flange | 45 | Super Heavy | 125.3 | Configure ↗ |
| PGHW55CA | Flange | 55 | Heavy | 153.2 | Configure ↗ |
| PGHW55HA | Flange | 55 | Super Heavy | 184.9 | Configure ↗ |
| PGHW20CB | Flange | 20 | Heavy | 27.1 | Configure ↗ |
| PGHW20HB | Flange | 20 | Super Heavy | 32.7 | Configure ↗ |
| PGHW25CB | Flange | 25 | Heavy | 34.9 | Configure ↗ |
| PGHW25HB | Flange | 25 | Super Heavy | 42.2 | Configure ↗ |
| PGHW30CB | Flange | 30 | Heavy | 48.5 | Configure ↗ |
| PGHW30HB | Flange | 30 | Super Heavy | 58.6 | Configure ↗ |
| PGHW35CB | Flange | 35 | Heavy | 64.6 | Configure ↗ |
| PGHW35HB | Flange | 35 | Super Heavy | 77.9 | Configure ↗ |
| PGHW45CB | Flange | 45 | Heavy | 103.8 | Configure ↗ |
| PGHW45HB | Flange | 45 | Super Heavy | 125.3 | Configure ↗ |
| PGHW55CB | Flange | 55 | Heavy | 153.2 | Configure ↗ |
| PGHW55HB | Flange | 55 | Super Heavy | 184.9 | Configure ↗ |
| PGHW20CC | Flange | 20 | Heavy | 27.1 | Configure ↗ |
| PGHW20HC | Flange | 20 | Super Heavy | 32.7 | Configure ↗ |
| PGHW25CC | Flange | 25 | Heavy | 34.9 | Configure ↗ |
| PGHW25HC | Flange | 25 | Super Heavy | 42.2 | Configure ↗ |
| PGHW30CC | Flange | 30 | Heavy | 48.5 | Configure ↗ |
| PGHW30HC | Flange | 30 | Super Heavy | 58.6 | Configure ↗ |
| PGHW35CC | Flange | 35 | Heavy | 64.6 | Configure ↗ |
| PGHW35HC | Flange | 35 | Super Heavy | 77.9 | Configure ↗ |
| PGHW45CC | Flange | 45 | Heavy | 103.8 | Configure ↗ |
| PGHW45HC | Flange | 45 | Super Heavy | 125.3 | Configure ↗ |
| PGHW55CC | Flange | 55 | Heavy | 153.2 | Configure ↗ |
| PGHW55HC | Flange | 55 | Super Heavy | 184.9 | Configure ↗ |
| PGHL25CA | Square (low) | 25 | Heavy | 34.9 | Configure ↗ |
| PGHL25HA | Square (low) | 25 | Super Heavy | 42.2 | Configure ↗ |
| PGHL30CA | Square (low) | 30 | Heavy | 48.5 | Configure ↗ |
| PGHL30HA | Square (low) | 30 | Super Heavy | 58.6 | Configure ↗ |
| PGHL35CA | Square (low) | 35 | Heavy | 64.6 | Configure ↗ |
| PGHL35HA | Square (low) | 35 | Super Heavy | 77.9 | Configure ↗ |
| PGHL45CA | Square (low) | 45 | Heavy | 103.8 | Configure ↗ |
| PGHL45HA | Square (low) | 45 | Super Heavy | 125.3 | Configure ↗ |
| PGHL55CA | Square (low) | 55 | Heavy | 153.2 | Configure ↗ |
| PGHL55HA | Square (low) | 55 | Super Heavy | 184.9 | Configure ↗ |
Part numbers & options
How a part number reads
PGH W 25 C A E 1/2 T 1600 E ZA P I / II / E2 + KK + measuring module (spaces between decoded positions)
- PGH
- Series — PGH positioning guideway
- W
- Block type — W flange · H square · L square (low)
- 25
- Model size — 20 · 25 · 30 · 35 · 45 · 55
- C
- Load type — C heavy · H super heavy
- A
- Block mounting type — A from top · B from bottom · C top or bottom
- E
- Block build — E special block · none standard block
- 1
- Blocks with sensor — total per rail
- 2
- Blocks per rail — total count
- T
- Rail mounting type — R from top · T from bottom (bottom mounting affixes the magnetic strip to the rail)
- 1600
- Rail length — in mm
- E
- Rail build — E special rail · none standard rail
- ZA
- Preload code — Z0 light · ZA medium · ZB heavy
- P
- Precision code — C · H · P · SP · UP
- I
- Rails with magnetic strip — count per axis
- II
- Rails per axis — count
- E2
- Lubrication — E2 self-lubricant block · blank standard block
- KK
- Dust protection — DD · ZZ · KK
- +S+01 1 10+A 1 1+S32
- Position measuring module — sensor (S standard 5 mm pole pitch · A external analog 1 mm · D external digital 1 mm · CD external digital 2 mm high precision) · cable length 01–25 m · connector 0–8 · 10 standard / 11 metal tube · signal translator A (standard sensor only) · resolution (1 = 5 µm · 2 = 10 µm) · output signal (1 = 5V RS422/TTL · 2 = 24V open collector) · display (LD · UPLD · H10 · H11 · S32 · S33 · S42 · S43)
The configurator assembles this number for you, with drawings and 3D CAD. Configure ↗
Accuracy classes
Five classes from Normal to Ultra Precision. Height and width tolerances tighten from ±0.1 mm at Normal to 0/-0.01 mm at Ultra Precision, with running parallelism tabulated by rail length; PGH 20, 45 and 55 follow the HG-series accuracy standards.
- C Normal — General positioning work where the encoder, not the rail geometry, carries the accuracy budget.
- H High — Automation and transfer equipment needing consistent travel accuracy.
- P Precision — Machine tools and measuring equipment; height tolerance closes to 0/-0.04 mm.
- SP Super Precision — High-precision stages where geometric error must stay within a few microns per rail section.
- UP Ultra Precision — The tightest class: 0/-0.01 mm dimensional tolerance and 2 µm running parallelism on short rails.
Preload
Preload is set as a fraction of the basic dynamic load rating C.
- Z0 Light Preload — 0-0.02C. Smooth, low-friction motion for light, constant loads.
- ZA Medium Preload — 0.05C-0.07C. The general-purpose setting for positioning applications.
- ZB Heavy Preload — 0.10C-0.12C. Maximum stiffness for machine tools and high-vibration installations.
How buying works
Spec it in the configurator: drawings, 3D CAD, and a quote to follow.
HIWIN series are configured to your application, not bought off the shelf. Start from your loads and speeds if you are still choosing a size.
Rather talk it through? Request a quote from an application engineer.