Precision Press-Fitting
Hydraulic and arbor press installation of dowel pins, self-lubricating bronze bushes, and bearings into machined steel housings with exact interference fit tolerances.
Supply Chain Simplification
Mechanical Sub-Assemblies
Transforming precision turned and drilled parts into ready-to-install automotive sub-systems. By integrating Traub components, fasteners, bushes, and seals under one roof in Faridabad, Annectotech LLP drastically reduces your assembly line overhead and SKU complexity.
The OEM Advantage
Why Buy Individual Parts When You Can Buy Solutions?
Managing multi-tiered vendor supply chains is one of the highest hidden costs in Tier-1 automotive manufacturing. Sourcing turned shafts from one supplier, drilled washers from another, and fasteners from a third introduces logistical bottlenecks, heavy inventory holding costs, and frustrating finger-pointing when fitment issues arise.
At Annectotech LLP, our Mechanical Sub-Assembly division eliminates this friction. Because we manufacture the core Traub turned components and secondary drilled parts in-house, our technicians take full responsibility for fitting, pressing, torqueing, and testing the complete sub-assembly. You receive a single, part-numbered, 100% quality-inspected component ready for immediate integration onto your vehicle production line.
- Reduced BOM Complexity: Consolidate 5 to 10 individual Bill of Materials (BOM) items into one single procurement order.
- Zero Fitment Rejections: In-house mating verification ensures pins, shafts, and bushings interlock with perfect mechanical tolerance.
- Reduced Labor Costs: Offload tedious manual pressing and fastening tasks from your own high-cost assembly lines.
Core Competencies
Our Assembly Methodologies
We utilize calibrated pneumatic presses, torque-controlled tools, and custom assembly fixtures to ensure absolute mechanical integrity across high-volume runs.
Torque-Controlled Fastening
Automated and manual torque wrench tightening of critical fasteners, locking nuts, and retaining rings, verified to exact automotive Nm tightening specifications.
Adhesive & Sealant Bonding
Precise dispensing of Loctite threadlockers, liquid gaskets, and retaining compounds to secure threaded joints against severe engine vibration and fluid leaks.
Kit Packing & Bagging
Collating multiple fasteners, copper washers, and machined spacers into custom, barcoded kitting bags for aftermarket spare supply or assembly line kitting carts.
Verification & Reliability
100% Functional Testing Protocols.
When you receive a sub-assembly from Annectotech LLP, you are receiving a guaranteed, tested product. We build specialized Poka-Yoke testing fixtures in our tool room that physically verify whether every pin, retaining ring, and spacer is present and correctly seated before the part can be removed from the assembly workstation.
Depending on the functional requirements of your automotive component, our quality control team executes rigorous functional verification, including pneumatic leak testing for fluid connectors, pull-force testing for pressed joints, and rotational smoothness checks for bearing assemblies.
- Assembly Inspection Standard: 100% Go/No-Go Fixture Checked
- Pneumatic Leak Testing: Up to 10 Bar Pressure Verified
- Compliance Documentation: Batch Traceability & COC Supplied
Execution Methodology
Our Integration Process
A highly structured four-stage workflow that guarantees seamless integration from raw bar stock to the final assembled automotive component.
01
BOM Analysis
Our engineers dissect your assembly drawing, identifying which parts will be Traub machined in-house and which commercial fasteners or seals need to be procured.
02
In-House Machining
The core metal shafts, pins, and spacers are manufactured on our high-speed automatic lathes and secondary drilling machines, ensuring perfect base tolerances.
03
Integration & Pressing
Components are routed to our assembly zone where technicians use custom jigs, pneumatic presses, and calibrated torque wrenches to marry the parts together.
04
Final Verification
The fully integrated sub-assembly undergoes visual, dimensional, and functional testing before being batch-packed and dispatched to your OEM production line.
Automotive Applications
Sub-Assemblies We Deliver
A snapshot of the multi-component mechanical assemblies we regularly manufacture, integrate, and test for two-wheeler, four-wheeler, and EV mobility brands.
| Sub-Assembly Name | Component BOM Breakdown | Integration Methodology | Automotive Function |
|---|---|---|---|
| Hydraulic Brake Pin Kits | Turned Pin + Rubber Boot + R-Clip | Greased, inserted, and boot-sealed using custom fixtures. | Allows floating brake calipers to move smoothly without binding or seizing. |
| Two-Wheeler Pivot Linkages | Machined Housing + Bronze Bushes + Spacer | Arbor press interference fit; internal reaming to size. | Absorbs rear suspension swingarm shock and reduces rotational friction. |
| EV Battery Terminal Blocks | Knurled Brass Insert + Stamped Copper + M6 Bolt | Torque-controlled driving; threadlocker application. | Secure, high-voltage electrical power transfer in EV battery packs. |
| Engine Valve Rocker Shafts | Precision Shaft + Circlips + Wave Washers | Automated circlip grooving and manual tension verification. | Maintains precise valve timing alignment in internal combustion engines. |
Specialized Handling
Cleanroom & ESD-Compliant Assembly
As modern vehicles transition heavily toward electromobility and smart instrumentation, mechanical assemblies increasingly incorporate sensitive electronic sensors, wiring harnesses, and brass electrical contacts. To support these next-generation requirements, Annectotech LLP maintains dedicated, dust-controlled assembly zones. Equipped with Electrostatic Discharge (ESD) safe workstations, grounded matting, and specialized lint-free handling protocols, we ensure your electro-mechanical sub-assemblies are integrated in a pristine environment, completely free from particulate contamination and static damage.
Ready to Consolidate Your Supply Chain?
Send us your assembly BOM, engineering drawings, and monthly volume requirements. Let Annectotech LLP deliver complete, tested mechanical sub-assemblies directly to your line.