Small Boring Machine T806/T807/T806A/T808A
This family of small cylinder boring machines rebores the engine cylinders of motorcycles, automobiles and middle and small tractors, and also machines the inner holes of cylinder sleeves and other machine element holes. The four models differ almost entirely in bore range, which is how a buyer picks one: the T806 bore...
What This Machine Does
This family of small cylinder boring machines rebores the engine cylinders of motorcycles, automobiles and middle and small tractors, and also machines the inner holes of cylinder sleeves and other machine element holes. The four models differ almost entirely in bore range, which is how a buyer picks one: the T806 bores 39 to 60 mm, the T807 39 to 70 mm, the T806A 46 to 80 mm and the T808A 50 to 85 mm. The first three bore to a maximum depth of 160 mm at 486 r/min with a spindle feed of 0.09 mm/r; the T808A goes to 170 mm depth at 394 r/min with 0.10 mm/r feed. Spindle quick reset is manual on all four. Motors run on 220 or 380 V. These are rigid machines with a useful amount of cutting, easy and flexible to operate, and at 75 to 80 kg they suit a workshop that needs boring capability without a full engine machining line.
Why Buyers Choose This Machine
- Four bore ranges from 39 to 85 mm cover motorcycle small car and small tractor cylinders
- Rebores engine cylinders and also machines cylinder sleeve inner holes and other machine element holes
- Good rigidity allows a useful amount of cutting rather than light finishing passes only
- Machine weight of 75 to 80 kg means it can be positioned in a small workshop
- Motor accepts 220 or 380 V, so it fits most workshop supplies
- Easy and flexible operation for a shop without a dedicated borer
- T808A option gives 170 mm boring depth where the others reach 160 mm
Where Small Boring Machine T806 Earns Its Place
Problems It Solves
- A worn small cylinder is scrapped when there is no way to rebore it to an oversize piston
- Sending single cylinders out for boring costs more in turnaround than the job is worth
- Large cylinder boring machines are too big and too costly for motorcycle-size work
- Cylinder sleeve inner holes need machining accuracy a hand tool cannot hold
- A single bore range does not cover both motorcycle and small tractor cylinders
Who It Is For
- Motorcycle and tricycle repair workshops
- Small automobile engine repair shops
- Agricultural machinery repair shops working on middle and small tractors
- Distributors supplying small engine reconditioning equipment
Application Scenarios
- Reboring motorcycle cylinders in a two-wheeler repair shop
- Reboring small automobile engine cylinders before fitting oversize pistons
- Machining inner holes of cylinder sleeves for cars and tractors
- Middle and small tractor engine cylinder work in an agricultural repair shop
- Boring other machine element holes in the same bore diameter range
Technical Detail
Technical Features
- Boring diameter 39 to 60 mm on T806, 39 to 70 mm on T807, 46 to 80 mm on T806A, 50 to 85 mm on T808A
- Maximum boring depth 160 mm on T806 T806A and T807, 170 mm on T808A
- Spindle speed 486 r/min on T806 T806A and T807, 394 r/min on T808A
- Spindle feed 0.09 mm/r on T806 T806A and T807, 0.10 mm/r on T808A
- Manual spindle quick reset on all models
- Motor voltage 220 or 380 V
- Rigid construction for a good amount of cutting
- Easy and flexible operation
Specifications
| Machine type | Small cylinder boring machine |
|---|---|
| Models | T806 / T807 / T806A / T808A |
| Boring diameter | T806 39 to 60 mm; T807 39 to 70 mm; T806A 46 to 80 mm; T808A 50 to 85 mm |
| Max boring depth | 160 mm (T806 T807 T806A); 170 mm (T808A) |
| Spindle speed | 486 r/min (T806 T807 T806A); 394 r/min (T808A) |
| Spindle feed | 0.09 mm/r (T806 T807 T806A); 0.10 mm/r (T808A) |
| Spindle quick reset | Manual |
| Motor voltage | 220 / 380 V |
| Applications | Engine cylinders of motorcycles automobiles and middle and small tractors, cylinder sleeve inner holes, other machine element holes |
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
- Reboring
Quality Control
- Bore diameter and cylindricity checked on a test cylinder at both ends of the model's bore range
- Spindle speed verified against the 486 or 394 r/min rating
- Spindle feed verified against the 0.09 or 0.10 mm/r rating
- Machine rigidity checked under a test cut before shipment
- Machine painted and inspected before packing
Customisation Options
- Model chosen from T806 T807 T806A or T808A by the bore diameters you work on
- Motor supplied for 220 V or 380 V to suit your workshop
- Boring tooling specified within the model's bore range
- Manual prepared in the language your shop works in
How It Compares With the Alternatives
| XAIMC T8014A and T8016A cylinder boring machines | Those bore 65 to 140 mm and 80 to 165 mm for larger engines; this family covers the 39 to 85 mm motorcycle and small engine range |
|---|---|
| Hand honing only | Honing corrects finish and light wear but cannot take a worn cylinder out to an oversize piston; that needs boring |
| Sending cylinders out for boring | Subcontracting a single motorcycle cylinder costs more in turnaround than the work; a 75 to 80 kg machine keeps it in the shop |
Running the Machine
Step 1
Choose the model whose bore range covers the cylinders you work on
Step 2
Mount and align the machine on the cylinder or sleeve
Step 3
Set the boring tool to the diameter required within the model's range
Step 4
Check the bore depth needed is within 160 mm, or 170 mm on the T808A
Step 5
Bore at the machine's rated speed and feed
Step 6
Use the manual spindle quick reset to return the spindle
Step 7
Measure the bore before fitting the oversize piston
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Questions About Small Boring Machine T806
Which model should I order?
It is decided by bore diameter. T806 covers 39 to 60 mm, T807 39 to 70 mm, T806A 46 to 80 mm and T808A 50 to 85 mm. Send us the cylinder diameters you rebore and we will confirm.
How deep will it bore?
160 mm maximum boring depth on the T806 T807 and T806A, and 170 mm on the T808A.
What voltage does the motor need?
Motor voltage is 220 or 380 V. Tell us which your workshop runs and we will supply accordingly.
Is the spindle reset automatic?
No. Spindle quick reset is manual on all four models.
What speed and feed does it run at?
486 r/min with 0.09 mm/r feed on the T806 T807 and T806A; 394 r/min with 0.10 mm/r on the T808A.
Can it machine cylinder sleeves as well as blocks?
Yes. It is used for boring cylinder holes of internal combustion engines, inner holes of cylinder sleeves of cars or tractors, and other machine element holes.
What are your payment and trade terms?
FOB CFR and CIF. Payment is 30 percent by T/T on order and 70 percent before shipment, or an irrevocable L/C at sight.
Request a Quote on the Small Boring Machine T806
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.