Vertical Cylinder Honing Machine 3M9817
The 3MB9817 hones single line engine cylinders and V-engine cylinders of automobiles, motorcycles and tractors, and other machine element holes. Its table shifts the fixture to 0, 30 and 45 degrees, which is how a V-engine bank is brought upright under the spindle without building a dedicated fixture for every block. T...
What This Machine Does
The 3MB9817 hones single line engine cylinders and V-engine cylinders of automobiles, motorcycles and tractors, and other machine element holes. Its table shifts the fixture to 0, 30 and 45 degrees, which is how a V-engine bank is brought upright under the spindle without building a dedicated fixture for every block. The table is raised and lowered by hand through 0 to 180 mm to suit the block height. Reverse precision is 0 to 0.4 mm, and the operator selects a cross-hatch angle from 0 to 90 degrees or no cross-hatch at all, depending on the ring pack being fitted. Honing diameter is 25 to 170 mm to a maximum depth of 320 mm, with four spindle speeds of 120, 160, 225 and 290 rpm. The smaller 3MB9808 in the same family hones 25 to 82 mm to 200 mm depth at 200 or 280 rpm, so a buyer sizes the machine against the cylinders that actually come through the shop.
Why Buyers Choose This Machine
- Fixture shifts to 0, 30 and 45 degrees, so V-engine banks are honed upright without a custom fixture
- 25 to 170 mm honing diameter and 320 mm depth covers car motorcycle and tractor cylinders
- Four spindle speeds from 120 to 290 rpm let the operator match speed to bore size and stone grade
- Selectable cross-hatch angle from 0 to 90 degrees, or no cross-hatch, to suit the ring pack being fitted
- Reverse precision of 0 to 0.4 mm keeps the stroke reversal consistent at the ends of the bore
- Table moves up and down manually through 0 to 180 mm to set block height quickly
- Smaller 3MB9808 available in the same family for 25 to 82 mm work
Where Vertical Cylinder Honing Machine 3M9817 Earns Its Place
Problems It Solves
- A bored cylinder without a honed cross-hatch will not bed the piston rings properly
- V-engine banks cannot be honed square on a fixed flat table
- A single spindle speed forces the same surface speed on a 25 mm and a 170 mm bore
- Inconsistent stroke reversal leaves the bore oversize at the ends
- Different ring packs need different cross-hatch angles, which a fixed-angle machine cannot give
Who It Is For
- Engine rebuild shops finishing bores after reboring
- Workshops handling both inline and V-engine blocks
- Machine shops honing hydraulic and mechanical part bores alongside engine work
- Distributors equipping engine reconditioning workshops
Application Scenarios
- Honing cylinder bores after boring to give the ring pack a surface to bed into
- V-engine honing with the fixture shifted to 30 or 45 degrees
- Motorcycle and small engine honing at the lower end of the 25 to 170 mm range
- Tractor and diesel cylinder honing to depths up to 320 mm
- Honing other machine element holes to a specified cross-hatch
Technical Detail
Technical Features
- Machine table shifts the fixture to 0, 30 and 45 degrees
- Table raised and lowered manually 0 to 180 mm
- Reverse precision 0 to 0.4 mm
- Selectable cross-hatch angle 0 to 90 degrees or non-cross-hatch
- Maximum diameter of hole honed 25 to 170 mm on 3MB9817
- Maximum depth of hole honed 320 mm on 3MB9817
- Spindle speeds 120, 160, 225 and 290 rpm on 3MB9817
- 3MB9808 hones 25 to 82 mm to 200 mm depth at 200 and 280 rpm
Specifications
| Machine type | Vertical cylinder honing machine |
|---|---|
| Models | 3MB9817 / 3MB9808 |
| Max diameter of hole honed | 3MB9817 25 to 170 mm; 3MB9808 25 to 82 mm |
| Max depth of hole honed | 3MB9817 320 mm; 3MB9808 200 mm |
| Spindle speed | 3MB9817 120, 160, 225, 290 rpm; 3MB9808 200 and 280 rpm |
| Fixture angles | 0, 30 and 45 degrees |
| Table vertical movement | 0 to 180 mm, manual |
| Reverse precision | 0 to 0.4 mm |
| Cross-hatch selection | 0 to 90 degrees or non-cross-hatch |
| Applications | Single line and V-engine cylinders of automobiles motorcycles and tractors, 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
- Honing
- Cross-hatch finishing
Quality Control
- Honed bore diameter and cross-hatch angle checked on a test cylinder
- Reverse precision verified against the 0 to 0.4 mm rating
- Fixture angles checked at 0, 30 and 45 degrees on the assembled machine
- Each spindle speed verified against its rating
- Machine run in through a honing cycle before packing
Customisation Options
- 3MB9817 for 25 to 170 mm work or 3MB9808 where 25 to 82 mm is enough
- Honing heads and stones specified for your bore diameters and material
- Fixturing specified for the block types you hone most
- Supply voltage frequency and manual language set to your market
How It Compares With the Alternatives
| XAIMC 3MB9808 vertical honing machine | The 3MB9808 hones 25 to 82 mm to 200 mm depth on two spindle speeds; the 3MB9817 doubles the diameter range to 170 mm, the depth to 320 mm and gives four speeds |
|---|---|
| XAIMC VHM170 automatic cylinder honing machine | The VHM170 is a CNC machine with stepless spindle and stroke control; the 3MB9817 is a manually set machine with fixed speed steps and manual table height |
| Hand honing with a flexible hone | A hand hone puts a finish on the bore but does not control cross-hatch angle stroke reversal or size the way a honing machine does |
Running the Machine
Step 1
Set the fixture angle to 0, 30 or 45 degrees to bring the cylinder upright
Step 2
Raise or lower the table manually within the 0 to 180 mm range to suit block height
Step 3
Fit honing stones suited to the bore diameter and material
Step 4
Select a spindle speed from 120, 160, 225 or 290 rpm for the bore size
Step 5
Set the cross-hatch angle between 0 and 90 degrees, or select non-cross-hatch
Step 6
Hone the first bore and check size and cross-hatch before continuing
Step 7
Work through the remaining cylinders at the same settings
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Questions About Vertical Cylinder Honing Machine 3M9817
What bore sizes will it hone?
The 3MB9817 hones 25 to 170 mm to a maximum depth of 320 mm. The 3MB9808 covers 25 to 82 mm to 200 mm depth.
Can it hone V-engine cylinders?
Yes. The machine table shifts the fixture to 0, 30 and 45 degrees, which brings a V bank upright under the spindle.
Can I choose the cross-hatch angle?
Yes. Mesh-wire degree is selectable from 0 to 90, or you can select non-mesh-wire where no cross-hatch is wanted.
What spindle speeds are available?
Four on the 3MB9817: 120, 160, 225 and 290 rpm. The 3MB9808 has 200 and 280 rpm.
Are honing stones supplied?
Honing heads and stones are specified against your bore diameters and cylinder material. Send us the bores you hone and we will quote them with the machine.
What voltage is it supplied at?
We set supply voltage and frequency to your market. Confirm your shop supply when you place the order.
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 Vertical Cylinder Honing Machine 3M9817
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.