Langbo SP-8A Horizontal Shaker

Overview

The Langbo SP-8A Horizontal Shaker is an engineered laboratory instrument designed specifically to meet the mechanical and operational requirements of the Chinese Environmental Protection Standard HJ 557–2009, “Leaching Toxicity Test Methods for Solid Waste – Horizontal Oscillation Method.” It operates on a robust eccentric-drive horizontal oscillation principle, generating consistent linear reciprocating motion across a fixed 40 mm stroke amplitude. Unlike orbital or rotary shakers, this device maintains strict horizontal plane displacement—critical for simulating standardized leaching conditions where gravitational settling and interfacial contact between solid waste matrices and extraction fluid must remain unaltered by vertical acceleration components. Its non-temperature-controlled architecture reflects its intended use in ambient-condition leaching protocols, aligning with regulatory test methods that specify no thermal regulation during the 18-hour oscillation cycle. The unit is widely deployed in environmental testing laboratories, municipal solid waste research centers, hazardous waste treatment facilities, and academic institutions conducting method validation or comparative leachate analysis.

Key Features

• Compliance-certified motion profile: Precisely replicates the horizontal oscillation waveform required by HJ 557–2009, including stroke amplitude tolerance (±1 mm) and speed stability (±3 rpm over full timer duration).
• Dual-mode timer control: Digital microprocessor-based timing system supports both single-cycle (1–999 min) and multi-segment programming (e.g., sequential rest/oscillation intervals), enabling flexibility beyond basic regulatory protocols.
• High-load platform design: Single reinforced stainless-steel platform rated for up to 16 × 2000 mL extraction bottles (total payload ≤ 32 kg), with adjustable bottle clamps accommodating conical, cylindrical, and wide-mouth containers.
• Low-noise, maintenance-free drive train: Brushless AC induction motor coupled with precision-machined eccentric cam and heavy-duty linear bearings ensures long-term repeatability and minimal drift (<0.5% speed variation after 500 h operation).
• EMC-compliant electrical architecture: Meets GB/T 18268.1–2010 (IEC 61326-1) for laboratory equipment electromagnetic immunity, ensuring stable operation in shared analytical lab environments with GC-MS, ICP-OES, and other sensitive instrumentation.

Sample Compatibility & Compliance

The SP-8A accommodates standard EPA SW-846 Method 1311-compatible containers—including 2-L HDPE leaching bottles, 1-L borosilicate glass jars, and custom-designed stainless-steel extraction vessels—without modification. Platform geometry allows simultaneous processing of heterogeneous sample sets (e.g., soil, slag, fly ash, medical waste ash) under identical kinematic conditions. While not certified to ISO/IEC 17025 for accredited testing per se, the instrument’s mechanical traceability (via factory calibration certificate documenting amplitude and speed verification at 50, 100, and 200 rpm) supports GLP documentation workflows. It is routinely referenced in CNAS-accredited lab SOPs for solid waste characterization under China’s “Standardization Law” and “Solid Waste Pollution Prevention and Control Law.”

Software & Data Management

The SP-8A operates via embedded firmware without proprietary PC software. However, its RS-232 serial interface (optional module) enables integration into LIMS environments via ASCII command protocol (e.g., “START”, “STOP”, “QUERY_SPEED”). Timestamped operation logs—including start time, elapsed duration, final rpm, and power-on cycles—are stored in non-volatile memory and exportable via terminal emulation. For FDA-regulated or GMP-aligned labs, optional 21 CFR Part 11-compliant audit trail modules (third-party validated) can be retrofitted to record user ID, parameter changes, and session termination events—supporting full electronic record integrity per Annex 11 requirements.

Applications

• Regulatory leaching tests for TCLP-equivalent screening (per HJ 557–2009 adaptation)
• Heavy metal mobilization studies in contaminated soils and industrial sludges
• Stability assessment of stabilized/solidified waste forms (e.g., cementitious encapsulation)
• Method development for alternative extractants (e.g., synthetic precipitation leaching procedure variants)
• Teaching laboratories demonstrating solid–liquid partitioning kinetics and mass transfer limitations in porous media

FAQ

Does the SP-8A meet international standards such as ASTM D5233 or ISO 14687?
It is designed and verified against HJ 557–2009; while its kinematic output overlaps with ASTM D5233 (horizontal shaking), formal cross-standard equivalency requires site-specific validation per ISO/IEC 17025 clause 5.4.2.
Can it operate continuously for >24 hours?
Yes—the 999-minute timer supports manual reset; continuous operation is permitted within ambient temperature limits (10–35°C) and relative humidity <80% RH non-condensing.
Is platform leveling adjustable?
Yes—four independent M10 leveling feet with lock nuts allow ±3° pitch/yaw compensation on uneven surfaces, ensuring uniform amplitude distribution across all bottle positions.
What safety certifications does it hold?
CE marking (2014/30/EU EMC Directive and 2014/35/EU LVD), GB 4793.1–2019 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use).
Is service support available outside mainland China?
Langbo Instruments authorizes regional technical partners in Southeast Asia, the Middle East, and Latin America for calibration, spare parts, and field diagnostics—documentation provided in English upon request.