Con-Rod Bushing Boring Machine T8216/T8210D
The T8216 and T8210D bore the rod bushing hole in connecting rods from diesel and petrol engines in automobiles and tractors, covering both the rod bushing and the copper bush pressed into it. A rod that has had a new small end bush fitted is not finished until that bush is bored true and to size; done by hand the bore...
What This Machine Does
The T8216 and T8210D bore the rod bushing hole in connecting rods from diesel and petrol engines in automobiles and tractors, covering both the rod bushing and the copper bush pressed into it. A rod that has had a new small end bush fitted is not finished until that bush is bored true and to size; done by hand the bore ends up oval or off centre, and the gudgeon pin either seizes or knocks. These machines do that operation in a controlled setup, with good rigidity and straightforward operation so a rebuild technician can run them. By changing the corresponding clamps the rod bushing seat hole itself can also be completed on the machine. Accessories are available for centring, a rectifying tool, the boring tool and boring micro-adjustment, which take the guesswork out of hitting final size. Both machines are designed to work alongside the T8115 cylinder body boring machine in a rebuild line.
Why Buyers Choose This Machine
- Bores the small end bush true to size after pressing so the gudgeon pin has a correct fit
- Handles both rod bushing and copper bush work on diesel and petrol engine rods
- Changing the clamps lets the same machine complete the rod bushing seat hole
- Boring micro-adjustment accessory lets the operator set final size directly instead of by trial cuts
- Centring accessory and rectifying tool cut setup time on each rod
- Works alongside the T8115 cylinder body boring machine as part of one rebuild line
- Simple operation so a rebuild technician can run it without specialist boring training
Where Con-Rod Bushing Boring Machine T8216 Earns Its Place
Problems It Solves
- A pressed-in bush closes up and must be bored before the gudgeon pin will fit
- Hand reaming a small end bush leaves it oval or off the rod centreline
- An off-centre small end bush causes knock and rapid pin wear after rebuild
- Sending rods out for bush boring holds up the whole engine job
- Damaged rod bushing seat holes make a rod look like scrap when it can be recovered
Who It Is For
- Engine rebuilders reconditioning connecting rods in-house
- Agricultural and tractor machinery repair workshops
- Diesel engine service shops handling rod and bush work
- Distributors equipping engine rebuild lines in export markets
Application Scenarios
- Boring new small end bushes after pressing them into connecting rods
- Reconditioning tractor and truck con rods in a rebuild shop
- Machining copper bushes in diesel engine connecting rods
- Completing the rod bushing seat hole with the corresponding clamps
- Batch con rod work in a shop that also runs a T8115 block boring machine
Technical Detail
Technical Features
- Boring of rod bushing hole covering rod bushing and copper bush
- Rod bushing seat hole machining with corresponding clamps
- Centring accessory for locating the rod on the machine
- Rectifying tool supplied as an accessory
- Boring tool and boring micro-adjustment accessories
- Rigid machine structure with straightforward operation
- Designed to be used together with the T8115 cylinder body boring machine
Specifications
| Machine type | Con-rod bushing boring machine |
|---|---|
| Models | T8216 / T8210D |
| Applications | Rod bushing hole rod bushing copper bush and rod bushing seat hole |
| Engine types | Diesel and petrol engines of automobiles and tractors |
| Workholding | Interchangeable clamps for bushing hole and bushing seat hole |
| Accessories | Centring device rectifying tool boring tool boring micro-adjustment |
| Companion machine | Cylinder body boring machine T8115 |
Figures above are taken from the product information we hold. Send us your application and we will confirm the exact specification for the model quoted.
How It Is Built and What Can Be Changed
Operations Performed
- Boring
- Bush bore finishing
- Seat hole machining
Materials Handled
- Copper bush
Quality Control
- Bore roundness and diameter checked on a test rod after boring
- Alignment of the bored bush to the rod big end axis verified before shipment
- Spindle run-out measured on the assembled boring head
- Micro-adjustment repeatability checked through its range
- Machine run in and a sample rod bored before packing
Customisation Options
- T8216 or T8210D selected for the rod sizes you work on
- Clamp sets specified for your con rod types including seat hole work
- Accessory package chosen from centring rectifying and micro-adjustment items
- Supply voltage and frequency set for your market
- Manual prepared in your working language
How It Compares With the Alternatives
| Cylinder body boring machine T8115 | The T8115 bores the block; the T8216 and T8210D do the connecting rod bush work, and the two are meant to sit in the same rebuild line |
|---|---|
| Hand reaming a pressed-in bush | Hand reaming follows whatever the bush has done under the press; boring on this machine sets the bore true to the rod and to size |
| Replacing the connecting rod | Reboring a bush or recovering the seat hole saves a rod that would otherwise be replaced, which on a tractor or truck engine is a significant part cost |
Running the Machine
Step 1
Press the new bush into the connecting rod small end
Step 2
Clamp the rod on the machine and locate it with the centring accessory
Step 3
Fit the boring tool and set the first cut with the micro-adjustment
Step 4
Take a light pass and measure the bore against the gudgeon pin size
Step 5
Bore to final size checking for roundness and alignment to the big end
Step 6
Change to the corresponding clamps where the rod bushing seat hole also needs machining
Step 7
Deburr and wash the rod before assembly
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Small Boring Machine T806/T807/T806A/T808A
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Questions About Con-Rod Bushing Boring Machine T8216
What is the difference between T8216 and T8210D?
They are two versions of the same con rod bushing boring machine covering different rod sizes and setups. Send us the range of connecting rods you work on and we will confirm which suits your shop.
Can it machine the rod bushing seat hole as well as the bush?
Yes. In case of necessity the rod bushing seat hole can be completed after changing the corresponding clamps.
What engines is it intended for?
Rod bushing holes of diesel and petrol engines in automobiles and tractors, including copper bush work.
Can it be used with a cylinder boring machine?
Yes. Both models can be used together with the cylinder body boring machine model T8115 as part of one rebuild line.
What accessories are available?
Accessories for centring, a rectifying tool, the boring tool and boring micro-adjustment. Tell us which you want included in the quotation.
How is the machine packed and shipped?
Machines are crated for sea freight, with fumigated timber where your import rules require it. Send us your destination port for an FOB CFR or CIF quotation.
What are your payment terms?
30 percent by T/T on order and 70 percent before shipment, or an irrevocable L/C at sight.
Request a Quote on the Con-Rod Bushing Boring Machine T8216
Send us the work you need it to do, the voltage on your site and the port you ship to. We will come back with the model, the tooling and the lead time.