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SCIYON S-Diamond Intelligent Variable-Speed Electric Actuators

source： date：2026-09-27

The S-Diamond is the intelligent variable-speed category of SCIYON's S-Series electric actuators, covering the DY intelligent variable-speed multi-turn (30Nm~25,000Nm) and DL/DLM intelligent variable-speed linear (3kN~40kN) types. Built around a brushless DC motor with intelligent speed-drive technology, Diamond targets modulating duties that require fine speed control and high positioning accuracy.

S-Diamond structure cutaway

S-Diamond structure cutaway (image source: SCIYON official website)

Key Features

Intelligent speed drive: brushless DC motor with stepless speed regulation over 10~100% of rated speed; output speed can be segmented into 9 settings; soft start/stop reduces valve impact and wear, greatly extending valve life
Dual-encoder redundancy: absolute + incremental encoder structure with mutual cross-checking; if one encoder fails the other completes the current stroke
Control accuracy down to 0.05mm: precise control algorithms, precision transmission and backlash-free position acquisition — about the diameter of a human hair
Small body, big power: integrated, compact design; high-power-density brushless DC motor with precision planetary gearing — 30% smaller and lighter than conventional actuators at the same thrust
Upgraded HMI: 3.5-inch color display (about three times the size of conventional actuator displays) with dynamic valve-position display
Power-off display: on battery power, view device status, set operating/bus parameters, query history commands and alarms
Porthole-style condensation-free window: double-layer display window with thermal insulation
Intelligent torque adjustment: 30~100% adjustable for precise torque output and effective valve protection
Pluggable wiring: standardized terminals for convenient site wiring
Rich diagnostics: vibration detection, torque curves, multi-point real-time temperature detection, status monitoring, plus over-current, over-voltage, under-voltage, over-temperature, phase-loss and overload protections

DLM intelligent variable-speed linear electric actuator

DLM intelligent variable-speed linear electric actuator (image source: SCIYON official website)

DLM Linear Main Performance Data (380VAC/50Hz)

Model	Speed (mm/s)	Thrust (kN)	Modulating thrust (kN)	Working current (A)	Power (kW)	Breaker	Flange
DLM 2033	1.8	3	1.2	0.60	0.08	——	G1
DLM 2063	1.8	6	2.4	0.60	0.15	——	G2
DLM 2103	1.8	10	4	0.60	0.23	——	G3
DLM 3123	1.88	12	4.8	1.47	0.29	D4	G1~G3
DLM 3163	1.88	16	6.4	1.47	0.44	D4	G1~G3
DLM 3203	1.88	20	8	1.47	0.52	D4	G1~G2
DLM 4253	1.88	25	10	2.01	0.72	D4	G1~G4
DLM 4303	1.88	30	12	2.01	0.87	D4	G1~G4
DLM 4403	1.88	40	16	2.01	1.12	D4	G1~G4

Note: strokes of 50/60/100/170mm are available; single-phase 220VAC/50Hz versions of the same models exist with correspondingly higher current/power; working current/power are reference values at 30% of maximum control thrust.

Basic Specifications

Item	Value
Analog input	4~20mA control signal, input impedance ≤250Ω
Analog output	4~20mA position signal, load ≤750Ω, temperature effect ≤±0.5%/10K
Digital input	Passive pulse or level signal, min. 100ms
Digital output	Relay-isolated, 5A@250VAC / 5A@30VDC
Starts per hour	1200
Motor	Class F, H (optional); duty S4, S5
Basic error	≤±1.0%; hysteresis ≤1.0%; dead band 0.1%~9.9% adjustable; no hunting
Protection	IP68 (2m for 96h)
Anti-corrosion	C3 standard, C5/WF2 optional
Power supply	380VAC±20% / 220VAC±20%; 50Hz±1% / 60Hz±1%; harmonics <5%
Environment	-25℃~+70℃; humidity ≤95% non-condensing; 86~106kPa
Fieldbus	PROFIBUS-DPV0/DPV1, Modbus, FF, Hart, etc.

Reference Standards

GB/T 26155.1-2010, GB/T 26155.2-2012, JB/T 8219-2016, GB/T 28270-2012, DL/T 641-2015, GD 01-2006 (Type Approval Test Guideline for Electrical and Electronic Products), GB 4208-2017 (IP code).

Document Download

SCIYON S-Series Diamond intelligent variable-speed linear actuator leaflet (V2.0, PDF)

See also the S-Starfish intelligent series and the EHA-SY electro-hydrostatic actuator in this column.