A Cost-Effective way to enter our single disc market!
Our Single Disc Linkage Seeder model is the most cost-effective way to enter our single disc market. A simple yet robust 9mm RHS frame is available in a fixed or folding design. The linkage carry single disc bars are excellent for raised beds or row crop farming as there’s no wheels on the frame to run in the furrows. This model is versatile with the ability to handle either larger capacity tow behind carts or the more maneuverable front mounted linkage bins.
Proving to be popular when paired up with our Ultiforce hydraulic down pressure system, this combination gives the operator the ease to transition from sowing on flat ground than directly onto raised beds. No matter whether on top of the bed or down in the furrow the Ultiforce will deliver excellent seed placement and consistent down pressure.
SERAFIN ULTISOW STPL SINGLE DISC LINKAGE SEEDER 6m-12m Specifications
ROWS | RIGID/FOLDING | WORKING WIDTH | ROW SPACING | TRANSPORT WIDTH | TOTAL WEIGHT | REQ HP |
---|---|---|---|---|---|---|
24 | RIGID | 6m | 250mm | 6.2m wide | 3,400kg | 220hp |
32 | RIGID | 8m | 250mm | 8.2m wide | 4,400kg | 300hp |
24 | FOLDING | 6m | 250mm | 4.5m wide | 4,000kg | 240hp |
32 | FOLDING | 8m | 250mm | 4.5m wide | 5,000kg | 320hp |
40 | FOLDING | 10m | 250mm | 5.5m wide | 5,700kg | 400hp |
36 | FOLDING | 12m | 333mm | 6.0m wide | 6,000kg | 400hp |
Customer Testimonial

In 2012 I started with an 8m Folding STPL. The first use of this machine was an absolute delight. The productivity was amazing. A couple of years later, I traded in my old units and went to 333mm spacing which is perfect for row crop situations.
Now I've upgraded to a 12m linkage bar. Both linkage bars are professionally made and built with a strong frame which can handle the rough conditions I have experienced over the years.
Any day with a Serafin Seeder is a good day.
Josh Hatton,
Wee Waa NSW
STPL Video
Serafin SM Row Unit - Features

- THE SM SINGLE DISC ROW UNIT FROM SERAFIN FEATURING:
- Large 508mm Disc Blade
- Needle Roller Bearings
- Serafin Long-Life Cast Closing Wheel
- 3 Spoke Buco Depth Wheel
- Independent Spring Down Pressure
- Replaceable Mud Scraper
- Depth Adjustment Handle
- Adjustable Seedboot
- Buco Hard Vee Rubber Press Wheel

Large 508mm Disc Blade – Slow turn speed, allowing for better cut of trash. Lasts 30-40% longer than comparable 18″blade
Needle Roller Bearings -high quality, low maintenance, durable
Serafin Long-Life Cast Closing Wheel – Non-Greaseable. Fill adjustable to suit varying sowing conditions
3 Spoke Buco Depth Wheel – Better mud and trash clearing. Non-Greaseable bearing
Independent Spring Down Pressure – For press and closing wheels, with Non-Greasing and long life bearings

Replaceable Mud Scraper – new, longer and fully adjustable. Improving performance in varying conditions
Depth Adjustment Handle – Making changing of seeding depth a breeze. 1/2″Increments
Adjustable Seedboot – Smooth internal casting improving seed placement
Buco Hard Vee Rubber Press Wheel – Excellent seed to soil contact, for hard wearing and long life
Feature | Specification | ||||||
---|---|---|---|---|---|---|---|
Cutting Disc | 20" x 6mm single disc blade on a 7 degree angle, no undercut | ||||||
Cover Wheel Pivot | Bearing - Non greaseable, adjustable closing position | ||||||
Firming Wheel Pivot | Bearing - Non greaseable, adjustable closing position | ||||||
Cover Wheel | Serafin Cast 12" smooth type with adjustable spacers to ensure perfect closing action in all soil types, Non greaseable | ||||||
Firming Wheel | 9 1/2" x 25mm BUCO Hard Vee wheel with Non greaseable 5203 bearings | ||||||
Depth Gauge Wheel | 4 1/2" x 15" BUCO semi pneumatic rubber wheel on 3 spoke open centre, Non greaseable bearing (other types optional) | ||||||
Depth Control | Quick and Easy to adjust handle, new Heavy Duty pin and heavy toothed casting for long life, 1/2" increments | ||||||
Disc Hub & Bearing | A unique sealed lubrication, with an extended service life and very low maintenance. Increasing uptime and reducing maintenance costs​ | ||||||
Front Pivot Clamp | Extremely long life needle roller bearings, Non greaseable. Does away with unnecessary wearing bush & pin | ||||||
Total Unit Weight | Approx 105kg with a standard configuration |
Brochure & User Manual

Enquire about the SERAFIN ULTISOW STPL SINGLE DISC LINKAGE SEEDER 6m-12m
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