DSServo
DSServo DS3218 (DS3218MG) is a standard-size digital metal-gear servo: 19 kg·cm stall torque at 5 V and 21.5 kg·cm at 6.8 V, 0.16 / 0.14 s per 60°, 4.8–6.8 V, 500–2500 µs PWM for 180° or 270° travel, 3 µs dead band, IP66, dual ball bearings, 25T spline. Case 40 × 20 × 40.4 mm, 54.5 mm over the ears, 60 g.
DS3218MGDevelopment boardFacts about the complete product. Unknown values remain open design questions.
Guidance to help you shortlist. The basis is shown for each recommendation.
Standard-size position servo with 19 kg·cm stall torque at 5 V and 21.5 kg·cm at 6.8 V over 180° or 270° on a 500–2500 µs PWM signal, 60 g — the common pick for desktop robot-arm shoulders and elbows; size the load well below stall.
Engineering inference21.5 kg·cm stall torque in a 40 × 20 mm case with a 25T metal spline drives a gripper jaw linkage with more force than 9 g micro servos.
Engineering inferenceNo-load speed, rated performance and stall limits describe different operating points. A stall specification is not a continuous operating rating.
Generated from the datasheet's dimensioned drawing and measured against it. Download the STEP to check fit in your own enclosure.
ear_thickness=3 mm assumed: ear thickness not dimensioned — ≈3 mm scaled off the side view, for the CAD envelope only output_offset_x=29.8 mm assumed: spline position not dimensioned; scaled off the top view (≈29.8 of 40 mm) for the CAD envelope only shaft_d=5.8 mm assumed: spline diameter not dimensioned (25T arm) — 5.8 mm assumed for the CAD envelope only shaft_len=4 mm assumed: spline height not dimensioned — 4 mm assumed for the CAD envelope only
What the joint can deliver and how the controller talks to it.
| Connector | Type |
|---|---|
| servo | 3-wire servo lead with a 3-pin female servo plug (signal, +, −) |
Rated torque is continuous; peak torque is short-duration. Values with two figures (e.g. 24/48 V) are per supply voltage.
No-load, rated-load and stall figures retain their separate test conditions.
Stall torque and current are not continuous ratings. Check the duty cycle and starting load when choosing the driver and power supply.
Product operating conditions, chip ambient ratings, package case limits and junction maxima remain separate.
Reported product dimensions may exclude protruding components. Unknown height does not establish a complete clearance envelope.
Attached generated geometry is an approximate envelope. A generated outline does not establish an electrically verified PCB footprint.
| ID / type | Pins | Pitch | Notes |
|---|---|---|---|
| servo3-wire servo lead with a 3-pin female servo plug (signal, +, −) | 3 | Unknown | — |
Every available field, including details beyond the summaries. Null means the value has not been established.
US / USD is the target market. Observed price and stock are separate from a delivery quote.
US · USD
This observation is stale or has no verified check time. Recheck with the supplier.
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Each source keeps its own verification status. Confirm the part revision and file contents before using it in a design.
Manufacturer reference
Unverified reference
inspected: black/pink case labelled DS3218 MG, '20 Kg Dc4.8~6.8v DSSERVO DIGITAL SERVO', brass 25T spline, red/white/black lead with 3-pin plug. Retailer image → unverified.
Generated asset
cad_check passed
Generated envelope geometry may also exist for this record. It does not replace manufacturer CAD or a verified electrical land pattern.
Document provenance, retrieval dates and the field groups supported by each source.
Supports: spec.constraints.electrical.supply_voltage_nominal_v, spec.geometry.body_length_mm, spec.geometry.cad.assumptions, spec.geometry.cad.bbox.height_mm, spec.geometry.cad.bbox.length_mm, spec.geometry.cad.bbox.width_mm, spec.geometry.cad.envelope_complete, spec.geometry.cad.mesh_path, spec.geometry.cad.step_path, spec.geometry.cad.verification, spec.geometry.dimensions.height_mm, spec.geometry.dimensions.length_mm, spec.geometry.dimensions.width_mm, spec.geometry.other.weight_g, spec.provides.actuator_type, spec.provides.control_interface, spec.provides.control_modes, spec.provides.encoder, spec.provides.features, spec.provides.gear_type, spec.provides.integrated_driver, spec.provides.motor_type, spec.provides.no_load_speed_rpm, spec.provides.peak_torque_nm, spec.usage.connectors, spec.usage.pinout_complete, spec.usage.requirements.rated_voltage_v
sha256 f700f7c07ee609e8d80c3dd8d1d1ecc6df642c0996d983a5b503ff599ae08cfe
Supports: offers
From $15.16 at rcdrone.top (RCDrone). Prices are observed unit prices before tax and shipping.
54.5 × 20 × 44.4 mm. A STEP model is available for enclosure fit checks.
Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.