Design, manufacture & supply of screw conveyor (c81009) for ptfe filter destruction project

General scope: Design, manufacture and supply of a screw conveyor (100 NB) per Necsa specification ENS-MES-SPE-0055 and drawing ENS-MES-DWG-0004 (project C81009). The conveyor includes mild steel construction (with possible material advancement), stainless steel elbows/universal joints (100 NB, SCH 40S, ASTM A182 F304L/304L, ASME B16.11), and a motor flange (100 NB SCH 40 ANSI B16.5 Class 150 SS, T.B.C.). Referenced P&IDs: ENS-FDP-PID-24001 to 24005. PTFE filter destruction is noted. Drawing revisions: 1.0 (10/09/2024) and 2.0 (06/06/2026) by D. Luhleko. Document is confidential and proprietary to Necsa.

Drawing approval contacts (not necessarily tender contacts):

• D. Luhleko – Mechanical Draughtsperson (Prepared)
• M.B. Msane – Mechanical Engineer (Checked)
• S. Mngoma – Chief Mechanical Engineer (Approved)

No tender-specific SCM or technical contact details (emails, phones, submission addresses) are provided in the document.

Not explicitly stated in provided document. Typically for Necsa nuclear procurement: ISO 9001 quality management system, nuclear industry experience, compliance with South African nuclear regulations (NNR requirements), proven track record in pressure equipment/conveyor manufacturing, ability to provide material certificates and inspection/test records, security clearance may be required for nuclear facility access.

Scope: Design, manufacture and supply of a screw conveyor per specification ENS-MES-SPE-0055 (drawing ENS-MES-DWG-0004, project C81009).

Key technical details from the drawing:

• Conveyor size: 100 NB (nominal bore)
• Main material: Mild steel (note: "or supply to advance on the material" – clarify with issuer)
• Elbows/universal joints: 100 NB, Schedule 40S, stainless steel ASTM A182 F304L/304L per ASME B16.11
• Motor flange: 100 NB Schedule 40 ANSI B16.5 Class 150 stainless steel (T.B.C. – to be confirmed)
• Referenced P&IDs: ENS-FDP-PID-24001 to ENS-FDP-PID-24005
• PTFE filter destruction mentioned
• Key dimensions (likely mm): 260, 800, 2560, 940, 1060, 3510 (exact application per drawing views)
• Revision history: Rev 1.0 (10/09/2024), Rev 2.0 (06/06/2026) – both detail design by D. Luhleko
• Drawing is confidential property of Necsa; reproduction or disclosure requires written permission.

Confidentiality and intellectual property:

• The drawing is the property of Necsa (South African Nuclear Energy Corporation Limited).
• It may not be copied, communicated to a third party, or used for any purpose other than that for which it is supplied without written permission.

No other compliance requirements (CSD, tax, B-BBEE, CIDB, CIPC, professional registrations, local content) are stated in the document.

Additional technical details from drawing:

• Motor flange: 100 NB Schedule 40 ANSI B16.5 Class 150 stainless steel (marked T.B.C.)
• Dimension references (likely mm): 260, 800, 2560, 940, 1060, 3510
• ISO metric view indicated
• Drawing approval block: Prepared by D. Luhleko (Mechanical Draughtsperson), Checked by M.B. Msane (Mechanical Engineer), Approved by S. Mngoma (Chief Mechanical Engineer)
• Drawing number: ENS-MES-DWG-0004, Sheet 2, Revision 1
• Confidentiality notice applies.

• Closing date and time: 24 July 2026 at 17:00.
• Quotation validity period: 90 days from the closing date.
• Compulsory site briefing: Not compulsory, but can be arranged if more information is required.

• Contact person for queries and submission: Thulile Sokhela.
• Email: [email protected].
• All queries must be in writing to this email only.

• Submit your quotation via email to [email protected].
• The closing date is 24 July 2026 at 17:00.
• Quotations must be completed in full; incomplete quotes may be disqualified.
• Do not deliver any goods or services without an official Necsa purchase order.
• Queries must be submitted in writing to the contact email only; approaching other Necsa employees may result in disqualification.
• The quotation must include all critical spares.

• You must submit the following mandatory documents with your quotation: - Tax Clearance Certificate. - Declaration of Interest (SBD 4). - B-BBEE Certificate or EME affidavit. - Letter of Good Standing (COID), if applicable. - Any other documents requested in the RFQ.
• The technical specification document (ENS-MES-SPE-0055) is an attachment you must reference.

South African registered company with proven track record in screw conveyor design/manufacture. Must achieve ≥80/100 in technical evaluation covering: experience (10+ years preferred), traceable references (4+ letters), in-house service/repair capability with critical spares stock, and product compliance with specification ENS-MES-SPE-0055. Valid tax clearance, B-BBEE status, and COID compliance required. No pre-payment terms accepted.

• Scope: Design, manufacture, and supply one screw conveyor as per specification ENS-MES-SPE-0055 (Revision 1).
• The detailed technical specification is provided in attachment 01: 'PTFE filter destruction project purchase specification for a screw conveyor'.
• The work environment requires compliance with Necsa's safety, health, environment, and quality policies, which reference ISO 14001, OHSAS 18001, RD 0034, ISO 9001, and ISO 17025.

• Key evaluation factor: Company experience in designing and manufacturing screw conveyors. Points are awarded based on years of relevant experience.
• You must provide a list of completed past projects with client details, project value, and duration.
• You must submit traceable reference letters from previous clients for whom you have designed and manufactured screw conveyors or related equipment.

• The supplier must note that Necsa's operations require top management commitment to quality and safety standards, including ISO 9001, ISO 14001, OHSAS 18001, RD 0034, and ISO 17025.

• Prices must be fixed, firm, and include all applicable taxes.
• Quoted price must include all additional costs: freight, delivery to site, insurance until acceptance, duty (if applicable), and disbursements.
• Pre-payment is not allowed.
• Payment terms will be according to Necsa's General Conditions of Purchase.

• Mandatory documents to submit with your quotation: - Valid Tax Clearance Certificate (Tax PIN issued by SARS). - Declaration of Interest (SBD 4). - B-BBEE Certificate or an affidavit if classified as an EME. - Letter of Good Standing from the Compensation for Occupational Injuries and Diseases (COID) Act, if applicable to the work. - Any other documents specifically requested in this RFQ.
• Your B-BBEE status level must be submitted with the bid to claim preference points; failure to submit proof means no points are claimed.
• The bid is subject to the Preferential Procurement Policy Framework Act 2000, the Preferential Procurement Regulations 2022, Necsa's General Conditions of Purchase, and the General Conditions of Contract (GCC).

• B-BBEE evaluation uses the 80/20 preference point system.
• Points for B-BBEE status level: Level 1 (20), Level 2 (18), Level 3 (14), Level 4 (12), Level 5 (8), Level 6 (6), Level 7 (4), Level 8 (2). Non-compliant contributors receive 0 points.

• Primary contact email: [email protected].
• For general information about Necsa, visit www.Necsa.co.za.