TEOGRA · bunker · blast protection · shielding
Distinct heavy-closure families for bunkers, applications with blast-protection requirements and technical access requiring radiological shielding.
Reference configurations and real photographs · performance and compliance are confirmed separately for each project
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Need engineering as well? SPW Engineering can coordinate the contracted documentation with fabrication and installation for this application.
Special-door and security-gate engineering01 — Approach
This page separates three requirements that should not be confused: bunker doors shown through construction typologies, gates for applications with blast-protection requirements and radiological-shielding closures.
The real blast-protection model is detailed on its dedicated technical page, while the gallery below separately presents the radiological-shielding application. Geometry, support structure, actuation, protection level and documentation are defined for the actual project.
02 — Configurations
Selection is not based on opening size alone. Door-leaf mass, travel path, lateral space, support structure, maintenance access and actuation must be treated as one system.
Heavy lateral-travel closure for technical openings where the door path and guiding equipment can be integrated into the available space.
Extended-leaf sliding variant assessed together with run-back space, support structure and access required for installation and maintenance.
Controlled rotation around an axis for applications where the opening path and load transfer require dedicated structure and kinematics.
These typologies are construction references, not standard products with a universally applicable protection class. Any resistance, certification or compliance is stated only for the configuration designed, verified and documented in the technical offer.
03 — Distinct application
Unlike the bunker doors presented above, this closure is identified as a solution for technical access with radiological-shielding requirements. The real photograph shows a large sliding gate and work at the base of the panel and along the floor paths.
04 — Scope
05 — Process
We clarify threat, performance, dimensions and operation.
We check support structure, opening, access, utilities and installation.
We define the technical solution and offer-specific documentation.
We coordinate installation, adjustment and handover within the agreed scope.
06 — Documentation
Quotation requires opening dimensions, structural drawings, requested protection level, operating mode and location. Any performance or compliance is confirmed only through the documentation for the proposed configuration.
Request a technical assessmentConfiguration, required inputs, installation, maintenance and limits of documented performance. This sheet does not replace project-specific documentation.
07 — Technical clarifications
Distinct heavy-closure families for bunkers, applications with blast-protection requirements and technical access requiring radiological shielding. Reference configurations and real photographs · performance and compliance are confirmed separately for each project
Quotation requires opening dimensions, structural drawings, requested protection level, operating mode and location. Any performance or compliance is confirmed only through the documentation for the proposed configuration.
Rail-guided sliding bunker doors; Heavy pivoting, blast-resistant or fragmentation-resistant closures; Gates and doors for access with radiological-shielding requirements; Support structures, actuation, integration and installation. The final scope is defined after reviewing the project and site conditions.
Requirement: We clarify threat, performance, dimensions and operation. Interfaces: We check support structure, opening, access, utilities and installation. Configuration: We define the technical solution and offer-specific documentation. Installation: We coordinate installation, adjustment and handover within the agreed scope.
Photographs support an initial assessment but do not replace dimensions, quantities, materials and access conditions. Price, schedule, transport and included work are defined in the quotation for the specific project.
Request documents applicable to the quoted configuration: drawings, materials, inspections and, where required by the project, test reports or certificates. A photograph or commercial name alone does not demonstrate a protection rating or certified performance.
09 — Contact
Send photographs, drawings, dimensions, location and schedule. We will return with the questions needed for a technical quotation.