Salient Characteristics Overhead Conveyor Blast Machine DRAFT.pdf

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OVERHEAD CONVEYOR BLAST MACHINE for TLSC-E/A
Solicitation number
W564KV26QA038
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This document is a Statement of Objectives (SOO) for the purchase of one stationary overhead rail shot blasting system for Maintenance Activity Kaiserslautern (MAK), a U.S. military facility in Germany operated by TLSC-E/A.

The system must be brand new, CE compliant, and designed for mechanical surface treatment of steel components including sheets, angle profiles, and welded assemblies. Key technical specifications include: maximum dimensions of 6,000 mm height × 3,600 mm width × 7,000 mm length; blasting chamber with pneumatically locked safety door and minimum opening dimensions of 1,500 mm height × 1,100 mm width; workpiece transport via manual or semi-automatic overhead rail with integrated oscillation (±150 mm) and rotation (8 RPM adjustable); at least two centrifugal turbines each with minimum 5.5 kW power and ≥80 m/s throwing speed; blast media throughput of ≥110 kg/min per turbine; dust extraction cartridge filter system with ≥2,000 m³/h air volume flow and ≤1 mg/m³ residual dust content; PLC-based control system (e.g., Siemens S7) with 7-inch minimum display; and 400V/50Hz/3Ph power supply. The machine must process parts weighing less than 10 kg with minimum load capacity of 500 kg per hook and operate on workpieces with effective diameter of at least 900 mm at temperatures between +5°C and +40°C.

The supplier must deliver the system ready-to-operate to point of use including compensation frame, unloading, and commissioning; provide on-site operator and maintenance training in German with certification; supply operation and maintenance manuals in English and German; maintain a 12-month warranty from delivery date or ≥1,800 operating hours; and guarantee spare parts availability for at least 10 years. The system must comply with EC Machinery Directive, DIN EN 1248, DIN EN 60204-1, Directive 2014/68/EU, DGUV Rule 100-500 Chapter 2.24, and DGUV Rule 113-001.

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Salient characteristics of an OVERHEAD CONVEYOR BLAST MACHINE for TLSC-E/A, Maintenance Activity Kaiserslautern (MAK)

TABLE OF CONTENTS

1. OVERVIEW OVERHEAD CONVEYOR BLAST MACHINE ............................................................................1-2

2. COMMON SAFETY REQUIREMENTS FOR ALL EQUIPMENT

3. COMMON REQUIREMENTS FOR ALL EQUIPMENT

4. TRANSPORT AND TRAINING REQUIREMENTS

1. OVERVIEW

This requirement consists of purchase of one (01) each Overhead Conveyor Blast Machine.

The stationary overhead rail shot blasting system is designed for the mechanical surface treatment of steel components. This facility utilizes the turbine blasting process to work on items such as sheets, angle profiles, and welded steel constructions. It is suitable for use in non-ATEX environments and can process various part geometries.

Key Features of the System

Type: Stationary Overhead Rail Shot Blasting System

Application Area: Surface treatment of steel components

Quantity: 1 unit

Dimensions: High: max 6.000 mm Width: max 3.600 mm Length: max 7.000 mm

DRAFT

Salient characteristics – Purchase of an OVERHEAD CONVEYOR BLAST MACHINE

TECHNICAL REQUIREMENTS:

1. Workpiece Data / Application Range

Suitable for: Steel parts of variable geometry

Types of Parts: Sheets, angle profiles, welded assemblies

Minimum and Maximum Dimensions: The effective diameter in the blasting area must be at least 900 mm.

Weight of Parts: Less than 10 kg, fixation may be required.

Load Capacity: Minimum load capacity per hook is 500 kg.

2. Blasting Chamber

Construction: Stationary, highly wear-resistant

Interior: Fully lined with replaceable wear protection material.

Safety: Pneumatically locked safety door.

Opening Dimensions: Minimum height of 1,500 mm and width of 1,100 mm.

Foundation: A compensation frame must be provided for the jet system.

3. Workpiece Transport System (Overhead Rail)

Mobility: Manual or semi-automatic.

Oscillation and Rotation: Integrated (oscillation ± 150 mm, rotation 8 RPM adjustable).

Hook Retraction: Automatic hook retraction before the blasting area.

4. Blasting Unit / Turbines

Number of Turbines: At least 2 centrifugal turbines, each with ≥ 5.5 kW.

Throwing Speed: ≥ 80 m/s.

Blast Media Throughput: ≥ 110 kg/min per turbine.

Power Regulation: Frequency converter for power regulation is mandatory.

5. Blast Media Recycling & Dosage

Feeding System: Screw conveyor + bucket elevator, performance ≥ 500 kg/min.

Media Treatment: Air classification / cascade separator.

Media Flow Regulation: Automatically integrated.

Media Refill: ≥ 40 liters integrated.

6. Dust Extraction / Filtration System

Filter Type: Cartridge filter system.

Air Volume Flow: ≥ 2,000 m³/h.

Residual Dust Content: ≤ 1 mg/m³.

7. Control / Operating Concept

Salient characteristics – Purchase of an OVERHEAD CONVEYOR BLAST MACHINE

Control System: PLC-based (e.g., Siemens S7).

Operating Panel: Touch or push-button display ≥ 7 inches.

Functions: Error messages, operating hour meter, turbine current monitoring.

Remote Maintenance: Via VPN connection (key switch activatable).

Power Supply: 400 V / 50 Hz / 3 Ph N/PE.

8. Operating and Process Requirements

Workpiece Temperature: +5 °C to +40 °C.

Process Steps: Texturing, derusting, cleaning.

Surface End Condition: Free from loose scale, rust, or dirt particles.

1. COMMON SAFETY REQUIREMENTS FOR ALL EQUIPMENT

The system must be brand new and CE compliant.

EC Declaration of Conformity according to Machinery Directive is required.

Operating, maintenance, and spare parts documentation must be in German.

Circuit diagram according to DIN EN 60204-1.

Warranty period of at least 12 months or ≥ 1,800 operating hours.

Spare parts availability must be guaranteed for at least 10 years.

Turbines and access doors secured with locking limit switches (DIN EN 1248) Compliance with DGUV Rule 100-500 Chapter 2.24 and DGUV Rule 113-001 regarding explosion-proof design of special filter systems for processing aluminum and magnesium DIN EN 1248 - Safety requirements for blasting machines Directive 2014/68/EU - Pressure Equipment Directive DIN EN 60204-1 - Electrical equipment of machines

2. COMMON REQUIREMENTS FOR ALL EQUIPMENT

The warranty for the system, including all components and accessories, is 12 months from the date of delivery.

1 ea. Operation manuals, 1 ea. Maintenance manuals. All Documentation in English and

German language.

3. TRANSPORT AND TRAINING REQUIREMENTS

Delivery: Delivered to the point of use, including a compensation frame, unloading and ready-to-operate setup.

Commissioning: By supplier.

Training: Operator and maintenance training on-site in German, including certification.

File details come from the government source that posted it. Updated .