Line Boring Machine LB100
The LB100 bores the main bearing and camshaft bearing bore lines of middle and small engine blocks, and with a special fixture it also bores con rod bushes. It is a small machine with a wide range of work: a general repair shop can put it in a corner of the floor and still recondition bore lines that would otherwise go...
What This Machine Does
The LB100 bores the main bearing and camshaft bearing bore lines of middle and small engine blocks, and with a special fixture it also bores con rod bushes. It is a small machine with a wide range of work: a general repair shop can put it in a corner of the floor and still recondition bore lines that would otherwise go out to a specialist. The boring carriage runs on guideways, and the centre of the main shaft is already adjusted in advance, so the operator is not setting spindle height from scratch on each job. The vertical column travels up and down to bring the workpiece into position accurately. Rigidity is good and spindle feed is stepless, which is what allows a fine cut in a bearing bore rather than a series of stepped feeds. Boring diameter range is 24 to 85 mm. The machine is intended for automotive service and repair work.
Why Buyers Choose This Machine
- Bores main bearing and camshaft bushing bore lines in middle and small engine blocks in-house
- Main shaft centre is pre-adjusted at the factory so setup does not start from a cold spindle alignment
- Vertical column travel up and down lets the operator bring the workpiece into accurate position
- Stepless spindle feed allows a fine finishing cut instead of a fixed set of feed steps
- Guideway-mounted boring carriage with good rigidity holds accuracy through the cut
- 24 to 85 mm boring diameter range covers car and light commercial bearing bores
- Con rod bush boring is possible with the special fixture so one machine covers two jobs
Where Line Boring Machine LB100 Earns Its Place
Problems It Solves
- Worn or damaged main bearing bores leave a block unusable without reboring
- Specialist bore line work sent outside adds cost and delay to every engine job
- Fixed feed steps make it hard to get a clean finishing cut in a bearing bore
- Setting main shaft centre height from scratch wastes setup time and invites error
- Small shops do not have floor space for a large-capacity boring machine
Who It Is For
- Small and medium automotive repair shops adding bore line work in-house
- Engine rebuilders working on car and light commercial engines
- Agricultural and small plant machinery workshops
- Distributors equipping compact repair workshops in export markets
Application Scenarios
- Reboring the main bearing bore line of a small or medium engine block
- Boring camshaft bush bores after fitting new bushes
- Boring con rod bushes with the special fixture
- Recovering blocks that have run a spun main bearing
- General automotive service and repair machining in a small workshop
Technical Detail
Technical Features
- Boring diameter range 24 to 85 mm
- Boring carriage moving on guideways
- Main shaft centre pre-adjusted in advance
- Vertical column travels up and down for workpiece positioning
- Stepless spindle feed
- Rigid compact machine structure
- Special fixture available for con rod bush boring
Specifications
| Machine type | Line boring machine for engine blocks and cylinder heads |
|---|---|
| Models | LB100 |
| Boring diameter | 24 - 85 mm |
| Carriage | Guideway-mounted boring carriage |
| Spindle centre | Pre-adjusted at the factory |
| Column | Vertical up and down travel |
| Spindle feed | Stepless |
| Applications | Main bearing bush camshaft bush and with fixture con rod bush |
| Packing | Wooden case, fumigation available |
| Shipping port | China port |
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
- Line boring
- Bush bore machining
- Bearing bore reconditioning
Quality Control
- Main shaft centre alignment verified before the machine leaves assembly
- Spindle run-out measured on the assembled boring carriage
- Bore roundness and alignment checked on a test cut
- Stepless feed tested across its range under cutting load
- Machine run in and function checked before packing in the wooden case
Customisation Options
- Special fixture supplied where you also want to bore con rod bushes
- Boring bars and tool holders specified for your bore diameters within 24 to 85 mm
- Supply voltage and frequency set for your market
- Fumigated wooden case where your import rules require it
- Manual prepared in your working language
How It Compares With the Alternatives
| Line honing machine LH100 | Honing corrects distortion with minimum stock removal; the LB100 bores, which is what you need when the bore is damaged rather than merely distorted |
|---|---|
| Line boring machine T8120*20 / LB2300 | The larger machines take long heavy blocks; the LB100 is the compact machine for middle and small engine blocks in a general repair shop |
| Portable line boring bars | A portable bar works in situ but the LB100 gives a rigid guideway-mounted carriage and a pre-set shaft centre, which is what holds bore alignment |
Running the Machine
Step 1
Mount the block and set it so the bore line is parallel to the boring bar
Step 2
Use the vertical column travel to bring the workpiece to the correct height
Step 3
Check the pre-adjusted main shaft centre against the bore line before cutting
Step 4
Set the boring tool to the diameter needed within the 24 to 85 mm range
Step 5
Take a light first cut and measure the bore before boring to size
Step 6
Use the stepless feed to slow the feed for the finishing pass
Step 7
Clean the block of all swarf before fitting bearings or bushes
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Questions About Line Boring Machine LB100
What bore diameters can the LB100 handle?
24 to 85 mm. Send us the bore sizes you work on and we will confirm the boring bar and tooling needed.
Can it bore con rod bushes?
Yes, with the special fixture. Tell us whether you want that fixture quoted with the machine.
What size engines is it for?
It was specially designed for middle and small engine blocks, crankshaft bush and camshaft bush work, and is aimed at automotive service and repair.
Does the spindle need aligning before use?
The centre of the main shaft is already adjusted in advance, so setup is a check rather than a full alignment. The block still has to be set true to the bar.
How is the machine packed?
In wooden cases, which can be fumigated where your import rules require it, shipping from a China port.
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.
What voltage will the machine be supplied at?
We build to the voltage and frequency of your market. Confirm your supply on the order and we will set the machine accordingly.
Request a Quote on the Line Boring Machine LB100
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.