17kHz Low Frequency Ultrasonic Cleaner with 14L Capacity for Sludge Treatment and Coarse Dispersion

$800.00 piece

This 17kHz low frequency 14L digital ultrasonic cleaner provides 480W adjustable power and 600W heating, optimized for sludge treatment and coarse dispersion.

Quantity Price Discount
2-20 $760.00 piece 5%
21-100 $720.00 piece 10%
101+ $680.00 piece 15%

Shipping & Delivery

  • Express Air Shipping Express Air Delivery

Door-to-door with tracking

7-15 Business Days

Calculated at checkout

  • Ocean Freight / Bulk Standard Ocean Freight

Best for bulk & heavy cargo

25-35 Business Days

Calculated at checkout

  • Warranty 1 year
  • Free 30-Day returns

Specification

Overview

ModelGNLH0614-17
BrandGranbo
ManufacturerGranbo Technology Industrial Shenzhen Co., Ltd.
OriginChina
Capacity
Frequency
Power
Tank Material3.0mm Heavy-Duty SUS304, SUS304 Stainless Steel
Housing MaterialSUS201 Stainless Steel
Function
HeaterRT~80°C
Heating Power
Timer1-9999s
Tank Size(mm)300 x 240 x 200
Unit Size(mm)400 x 300 x 420
Voltage100V-120V ~ 60Hz / 220V-240V ~ 50Hz
Plug TypeAU Plug, EU Plug, Other Plugs, UK Plug, US Plug
Warranty1 Year
Customization
CertificatesCE, FCC, ISO 9001, RoHS
Applications

Packaging

Chargeable Weight40.6 kg
Package Dimensions50 × 38 × 53 cm

Description

High-Energy 17kHz Cavitation for Industrial Processing

Operating at a low 17kHz frequency, this digital ultrasonic cleaner is built for heavy-duty applications such as sludge treatment and coarse dispersion. The low frequency generates large cavitation bubbles that collapse with powerful physical impact. Powered by 6 heavy-duty transducers, the system provides adjustable ultrasonic power from 0 to 480W to handle dense mixtures and tough contaminants.

Robust Manual Welding and Advanced Controls

To ensure long-term durability against intense cavitation, the unit features an ultra-thick 3.0mm heavy-duty SUS304 stainless steel tank constructed with manual oxy-acetylene heavy welding, paired with a SUS201 stainless steel housing. The digital interface offers a timer range from 1 to 9999 seconds and features Degassing, Sweep, Pulse, and Semiwave modes to optimize cleaning and processing.

Thermal Assistance and Tank Dimensions

The unit offers a 14L capacity with internal tank dimensions of 300x240x200 mm and overall unit dimensions of 400x300x420 mm. The integrated 600W heating system can raise the bath temperature from 20°C to 80°C to facilitate chemical reactions and contaminant removal, operating without constant temperature control.

Control Panel Overview

GL Series Control Panel Overview

Control Button Guide

17kHz Low Frequency Ultrasonic Cleaner with 14L Capacity for Sludge Treatment and Coarse Dispersion

Sweep Frequency Technology Overview

GL Series Sweep Frequency Explained

Pulse Mode Overview

17kHz Low Frequency Ultrasonic Cleaner with 14L Capacity for Sludge Treatment and Coarse Dispersion

Granbo PCB vs. Standard Ultrasonic Cleaner PCB

GL Series PCB vs. Standard Ultrasonic Cleaner PCB

Multi-Layer Noise Reduction Design

17kHz Low Frequency Ultrasonic Cleaner with 14L Capacity for Sludge Treatment and Coarse Dispersion

Box Contents:

  • 1 x Professional Ultrasonic Cleaner
  • 1 x Durable Mesh Cleaning Basket
  • One cover, one power cord, one manual warranty card certificate of conformity.

Packing type:

  • One unit filled with thick foam, then standard export corrugated carton or wooden box.

Real Customer Feedback

Real Customer Stories from the GL Series

Support & FAQ

Frequency determines cavitation bubble size, impact force, and penetration depth. Lower frequencies produce violent impact for heavy dirt, while higher frequencies provide dense, gentle cleaning for sub-micron microstructures:

Granbo Recommended Frequency Matrix:
• 28kHz: Heavy oil, scale, rust, polishing wax, cutting dust, and thick contaminants (>10μm) on heavy metal/resin parts.
• 40kHz: Universal choice for standard labware, stainless steel, glass, and general maintenance (>10μm particles).
• 68kHz / 80kHz: Fine cleaning for PCBs, watch components, optics, medical instruments, and micro-grooves (5–10μm particles).
• 120kHz: Precision cleaning for micro-blind holes (<0.1mm), semiconductors, ICs, optical lenses, and MEMS (1–5μm particles).
• 200kHz: Ultra-precision cleaning for silicon wafers, MEMS, thin films, and sub-micron / nano-scale contamination (<1μm).

Based on Granbo multi-frequency switchable configurations (Single/Dual/Triple/Quad), we recommend:

ProcessRecommended FrequencyApplication Context
Dispersion17-28kHz / 40kHz / 120kHz17-28kHz for coarse solid chunks; 40kHz for powders; 120kHz for micro/nano suspensions.
Emulsification28kHz / 40kHz28kHz generates stronger shear force for heavy liquid blending.
Extraction40kHz / 120kHz120kHz is standard for intracellular substance extraction and cell disruption.
Mixing/Catalysis40kHz / 120kHz40kHz for routine mixing; 120kHz for micro-particle homogenization.
Synthesis80kHz / 120kHzPrevents molecular degradation during material synthesis.
Environmental20kHzHigh-power sonication for sludge treatment, sewage, and algae disruption.

To resist cavitation erosion, Granbo customizes tank thickness and welding based on operating frequency:

Frequency RangeInner Tank (SUS304)Outer ShellCommon Tank Capacities & Process
28kHz - 200kHz 1.5 mm Thickness SUS304 (1.0 mm) 3–10L, 14–22L, 30–58L, 61–135L. Industrial precision stamping & TIG welding.
25kHz 2.0 mm Thickness SUS201 (1.0 mm) Thickened tank; Manual oxy-acetylene heavy welding.
17kHz & 20kHz 3.0 mm Thickness SUS201 (1.0 mm) Ultra-thickened tank; Manual oxy-acetylene heavy welding.

*Material Safety Tip: Soft metals (aluminum, brass, gold) and delicate glass/ceramics may scratch or fracture at 28kHz. We recommend 40kHz to 80kHz or pre-testing for delicate substrates.

When a workpiece has both stubborn contaminants and sub-micron precision requirements, use a multi-stage approach:

  1. Stage 1 (Pre-cleaning / 28kHz or 40kHz): Strips heavy grease, rust, polishing paste, scale, or coarse metal particles.
  2. Stage 2 (Fine Cleaning / 68kHz or 80kHz): Removes fine particles (5–10μm) from blind holes, threads, and complex internal geometry.
  3. Stage 3 (Ultra-Precision Rinse / 120kHz or 200kHz): Eliminates sub-micron (<1μm) residues without damaging fragile surfaces or thin films.
  • Sweep Mode: Automatically sweeps ±1kHz around the center frequency to eliminate standing waves, ensuring uniform cavitation across the bath.
  • Degas Mode: Uses pulsed ultrasound intervals (e.g., 5s on / 5s off) to purge dissolved air/gas from liquids—crucial for HPLC sample prep and max cavitation efficiency.
  • Pulse Mode: Rapidly cycles power from 100% to 0% to produce a "blasting" impact that removes tough or baked-on residues.

Granbo units utilize Full-Bridge Separately Excited PCB Driver Boards rather than cheap self-excited circuits:

  1. Visualized Real-time Data: Displays live Power, Frequency, and Current for strict laboratory protocol logging.
  2. High Power Density: Guarantees a standard ≥ 0.3W/cm² for thorough cleaning. Power Density = Ultrasonic Power (W) / Radiating Area (cm²)
  3. Low Noise Operation: While 28kHz operation naturally produces more audible mechanical noise, Granbo's multi-layer noise-reduction design enables high-frequency units (≥68kHz) to operate at noise levels below 80dB.

Ultrasonic frequency determines sound wavelength and cavitation bubble collapse intensity:

Wavelength (λ) = 1,450,000 (mm/s) / Frequency (Hz)
  • 20kHz (λ ≈ 72.5mm): Large bubbles, high collapse force. Best for heavy rust, sludge, and thick scale.
  • 40kHz (λ ≈ 36.2mm): Medium bubbles. Ideal balance between cleaning power and component safety.
  • 120kHz (λ ≈ 12.0mm): Micro bubbles. High penetration depth for sub-micron cracks and fragile silicon/semiconductor parts.

Beaker Size Matching:
• Beaker ≤ 500mL → 3.2L to 6.5L Tank.
• Beaker ≥ 800mL → 10L to 30L Tank (10L is the most popular size for general lab applications).

Temperature Management:
Ultrasonic activity inherently raises liquid temperature. Although Granbo heating goes up to 80°C, cavitation effectiveness drops significantly above 72°C–80°C due to increased vapor pressure. For temperature-sensitive or low-temp processes, use cooling coils or ice packs in the bath.

Standard production lead times for out-of-stock or customized Granbo models:

  • 28kHz - 200kHz Models (Single, Dual, Triple, Quad Frequency): 3 - 5 business days for shipping.
  • Ultra-Low Frequency (17kHz, 20kHz, 25kHz): 14 - 20 business days for shipping.

*Note: Customizations like RS-485 communication or PLC integration may slightly adjust delivery timelines. Contact us for precise scheduling.

More Models & Specifications

Click a model name to view its corresponding product page and detailed specifications.

17kHz Series

Model Transducers
(PCS)
Capacity
(L)
Tank Size
(LxWxH mm)
Unit Size
(LxWxH mm)
Frequency
(kHz)
Ultrasonic Power
(W)
Heating Power
(W)
Temp.
(C)
Timer
(S)
GNLH0203-17 2 3.2 240x135x100 340x195x320 17 0–160 300 20–80 1–9999
GNLH0205-17 2 4.8 240x135x150 340x195x370 17 0–160 300 20–80 1–9999
GNLH0304-17 3 4.5 300x150x100 400x210x220 17 0–180 450 20–80 1–9999
GNLH0306-17 3 6.5 300x150x150 400x210x370 17 0–180 450 20–80 1–9999
GNLH0610-17 6 10 300x240x150 400x300x370 17 0–480 600 20–80 1–9999
GNLH0614-17 6 14 300x240x200 400x300x420 17 0–480 600 20–80 1–9999
GNLH0815-17 8 15 330x300x150 430x360x370 17 0–640 1000 20–80 1–9999
GNLH0819-17 8 19 330x300x200 430x360x420 17 0–640 1000 20–80 1–9999
GNLH1422-17 14 22 500x300x150 600x360x380 17 0–1120 1000 20–80 1–9999
GNLH1430-17 14 30 500x300x200 600x360x430 17 0–1120 1000 20–80 1–9999

14L Capacity

Model Transducers
(PCS)
Capacity
(L)
Tank Size
(L×W×H mm)
Unit Size
(L×W×H mm)
Frequency
(kHz)
Ultrasonic Power
(W)
Heating Power
(W)
Temp.
(°C)
Timer
(S)
GNLH0614-17 6 14 300×240×200 400×300×420 17 0–480 600 20–80 1–9999
GNLH0614-20 6 14 300×240×200 400×300×420 20 0–600 600 20–80 1–9999
GNL0814-25 8 14 300×240×200 400×300×420 25 0–400 600 20–80 1–9999
GL0614-28 6 14 300×240×200 325×265×390 28 0–300 600 20–80 1–9999
GL0614-33 6 14 300×240×200 325×265×390 33 0–300 600 20–80 1–9999
GL0414-40 4 14 300×240×200 325×265×380 40 0–200 600 20–80 1–9999
GL0814-40 8 14 300×240×200 325×265×380 40 0–400 600 20–80 1–9999
GLS1614-50 16 14 300×240×200 325×265×380 50 0–480 600 20–80 1–9999
GLS1614-53 16 14 300×240×200 325×265×380 53 0–560 600 20–80 1–9999
GL0814-68 8 14 300×240×200 325×265×390 68 0–400 600 20–80 1–9999
GL0814-80 8 14 300×240×200 325×265×380 80 0–400 600 20–80 1–9999
GL0814-120 8 14 300×240×200 325×265×380 120 0–400 600 20–80 1–9999
GL0814-130 8 14 300×240×200 325×265×380 130 0–480 600 20–80 1–9999
GLS1614-200 16 14 300×240×200 325×265×380 200 0–400 600 20–80 1–9999
GL0614-2840 6 14 300×240×200 325×265×390 28/40 0–300 600 20–80 1–9999
GL0814-4068 8 14 300×240×200 325×265×390 40/68 0–400 600 20–80 1–9999
GL0814-4080 8 14 300×240×200 325×265×380 40/80 0–400 600 20–80 1–9999
GL0814-40120 8 14 300×240×200 325×265×380 40/120 0–400 600 20–80 1–9999
GL0814-80120 8 14 300×240×200 325×265×380 80/120 0–400 600 20–80 1–9999
GL0814-255080120 8 14 300×240×200 325×265×380 25/50/80/120 0–400 600 20–80 1–9999
GL0814-4080100160 8 14 300×240×200 325×265×380 40/80/100/160 0–400 600 20–80 1–9999
GL0814-4080120170 8 14 300×240×200 325×265×380 40/80/120/170 0–400 600 20–80 1–9999

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