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JST JGD-125C Water Cooled Spindle (view source)
Revision as of 21:10, 23 May 2022
, 21:10, 23 May 2022updated O-ring information
A 5.5kW / 6kW Chinese water cooled spindle with an ER25 collet chuck. It is marketed for stone engraving rather than CNC routing.
A 5.5kW / 6kW Chinese water cooled spindle with an ER25 collet chuck. It is marketed for stone engraving rather than CNC routing.
== Wiring ==
Power inlet "WEIPU WS20" circular connector wiring:
{| class="wikitable"
! Pin
! Wire Color
|-
| 1
| yellow
|-
| 2
| blue
|-
| 3
| red
|-
| 4
| (ground)
|}
The spindle has male pins inside an externally threaded receptacle.
== Replacement Parts ==
== Replacement Parts ==
* 5.1mm thick (dust shield portion)
* 5.1mm thick (dust shield portion)
* 4x 3.5mm holes 3mm deep on a 44mm diameter circle
* 4x 3.5mm holes 3mm deep on a 44mm diameter circle
* must get past a 33.3mm diameter spindle nose before threading into place
=== Top Locknut ===
=== Top Locknut ===
=== O-rings ===
=== O-rings ===
The top cap with the water inlets have 10mm OD 1mm deep recesses with a 6mm ID hole for O-rings. Maybe for one of these?:
* [https://www.mcmaster.com/1171N144/ Square-Profile Oil-Resistant Buna-N O-Ring, 1.5 mm Wide, 7 mm ID | McMaster-Carr]
* [https://www.mcmaster.com/1171N144/ Square-Profile Oil-Resistant Buna-N O-Ring, 1.5 mm Wide, 7 mm ID | McMaster-Carr]
* [https://www.mcmaster.com/1302N037/ Oil-Resistant Buna-N O-Ring, 1.8 mm Wide, 6 mm ID | McMaster-Carr]
* [https://www.mcmaster.com/1302N037/ Oil-Resistant Buna-N O-Ring, 1.8 mm Wide, 6 mm ID | McMaster-Carr]
* [https://www.mcmaster.com/9262K166/ Oil-Resistant Buna-N O-Ring, 2 mm Wide, 6 mm ID | McMaster-Carr]
* [https://www.mcmaster.com/9262K166/ Oil-Resistant Buna-N O-Ring, 2 mm Wide, 6 mm ID | McMaster-Carr]
The bearing housing portion of the spindle has 8mm OD 1mm deep recesses with 4mm ID holes for O-rings. Maybe for one of these?:
* [https://www.mcmaster.com/9262K627/ Oil-Resistant Buna-N O-Ring, 1.5 mm Wide, 4.5 mm ID | McMaster-Carr]
* [https://www.mcmaster.com/9262K163/ Oil-Resistant Buna-N O-Ring, 2 mm Wide, 4 mm ID | McMaster-Carr] (verified)
=== Fasteners ===
=== Fasteners ===