IMAO SDP-04HR-4B Digital Position Indicator (SDP-04, Horizontal Right Rotation)
| Manufaturer: | Imao |
| Model: | SDP-04HR-4B |
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Description
- It is lightweight and small.
- SKP-04 can be used to prevent shaft rotation caused by machine vibrations, etc.
- Shaft hole diameter φ14mm (φ6, 8, 10, 12 possible with shaft sleeve)
- Counter window with magnifying glass.
- When starting, keep the rotation speed at 1/3 or less of the allowable speed.
- Avoid sudden acceleration and stopping.
- Cannot be used if the shaft moves in the thrust (axial) direction.
- This product complies with the RoHS Directive (as of January 2025).
- Reading direction: horizontal
- Rotation direction: Right rotation
- Rotation direction count up: Right rotation
- Rotation direction countdown: Left rotation
- Lead screw pitch: 4
- 1 rotation display (ring position): 4
- Allowable rotation speed (min-1): 375
- Mass (g): 50
- Character height 6mm
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Frequently Asked Questions (FAQ) – IMAO SDP-04HR-4B Digital Position Indicator:
General Overview
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1/ What is the SDP-04HR-4B digital position indicator? The SDP-04HR-4B is a compact, four-digit mechanical counter designed to display linear actuator travel or rotary shaft position. It features a horizontal-window style (H) and counts upward when the shaft is rotated clockwise (right rotation, R) with a 4 mm thread pitch per revolution (4B).
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2/ What are the main advantages compared to traditional glass-scale or dial indicators?
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Instant, unambiguous numerical readout
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No parallax error or scale interpretation
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Robust polyamide housing for dust and debris resistance
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Easy reset to zero at any reference position
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Product Configuration and Ordering Information
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3/ How do I decode the model number SDP-04HR-4B?
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SDP-04: Series designation for digital position indicators
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H: Horizontal-window display style
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R: Counts up on clockwise (right) rotation
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4: 4 mm thread pitch per shaft revolution
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B: Standard single-revolution display
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4/ Are other thread pitches and rotation directions available? Yes. The SDP-04 series offers various pitch options (1 mm, 1.25 mm, 1.5 mm, 3 mm, 4 mm, 6 mm) and both clockwise (R) and counterclockwise (L) counting directions.
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5/ What accessories are supplied with the unit?
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One rubber cushion for vibration dampening
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Hex-socket setscrew (M4×0.7) for shaft fixation
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Installation instructions and mounting hardware reference.
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Specifications
Parameter Value Source Display digits 4-digit, range 0000–9999 5 Figure height 6 mm 7 Housing material Polyamide (nylon 6), orange 7 Working temperature range –10 °C to +80 °C 7 Shaft bore diameter 14 mm (standard) — Setscrew for fixation M4×0.7 hex socket 7 Maximum start-up revolution ≤ 1/3 of allowable shaft speed 7 Installation and Operation -
6/ How do I install the indicator on a lead screw or shaft? Slide the indicator’s bore gently onto the shaft to the end-plate or mounting bracket. Tighten the M4 setscrew securely against the shaft flat to prevent slip.
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7/ How do I reset the display to zero at a reference point? Rotate the shaft to your chosen zero point, then press and hold the rear reset button until the display reads “0000.” Release to lock in the new zero position.
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8/ Can I use both the rubber cushion and housing seal together? No. To prevent indicator rotation under vibration, use either the rubber cushion on the back of the housing or the optional housing seal, but not both simultaneously.
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9/ Are there special installation tips when oil mist or heavy debris is present? For environments with oil mist, metal shavings, or heavy debris, fit an additional protective cover or shield around the indicator window to prevent contamination.
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Maintenance and Troubleshooting
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10/ How often should I recalibrate or inspect the unit? For precision applications, inspect and recalibrate every 6–12 months or after any major disassembly.
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11/ What is the proper cleaning procedure? Wipe the housing and window with a soft, lint-free cloth lightly moistened with water. Avoid organic solvents or high-pressure spray.
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12/ Why isn’t the counter advancing when I rotate the shaft?
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Check that the setscrew is adequately tight against the shaft flat.
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Verify that the shaft pitch and indicator pitch match (e.g., 4 mm pitch indicator on a 4 mm screw).
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Inspect for excessive wear on the shaft or indicator drive mechanism.
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Ordering and Support
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13/ What is the full ordering code for this model? SDP-04HR-4B
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14/ Where can I purchase or request a quote? Authorized distributors include QTE Technologies (qtetech.com). Provide the full model code and quantity for a precise quotation.
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15/ What is the typical lead time for delivery? Delivery usually takes 5–10 business days within Vietnam, depending on stock availability.
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16/ Is custom configuration available? IMAO can accommodate custom thread pitches, counting directions, and window styles. Contact technical support for feasibility and lead times.
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17/ Where can I find detailed technical catalogs and CAD data? Download the English PDF datasheet and CAD files (DXF, DWG, IGES, STEP) from IMAO’s website under the SDP-04 section.
