The Barnaul KB8336 is a 400-ton closed-frame knuckle-joint coining press for cold forming operations that require high unit pressure over a short working stroke: coining, sizing, finishing, bulk forming and cold extrusion of steel parts. The press is sold used and as found.
The welded frame has adjustable L-shaped prismatic slide guides, a 500 × 500 mm die plate with T-slots, and a box-section slide. The two-stage drive transmits motor power through V-belts, flywheel and clutch-brake to the gear train; the knuckle-joint mechanism sits inside the extended slide. Upper and lower ejectors remove formed parts.
Model-passport data confirm 4,000 kN (400 tons) nominal force, a 130 mm slide stroke, 50 strokes per minute, a 500 × 500 mm table and a maximum 475 mm table-to-slide distance at the bottom position. The table-to-slide adjustment is 12 mm. Check the die drawing, centre of pressure and permitted slide-load diagram before confirming compatibility.
The machine is located in Europe and available for inspection. Contact TRIGA for a technical assessment and price — contact us.
Technical Specifications
Core press geometry and ejector data are transcribed from the KB8336 manufacturer passport. Verify the fitted equipment and condition of this used machine during inspection.
Nominal force
4,000 kN / 400 ton
Slide stroke
130 mm
Stroke rate
50 strokes/min
Working stroke to nominal force
16 mm before bottom position
Working stroke to 25% nominal force
19 mm before bottom position
Maximum table-to-slide distance at bottom position
475 mm
Table-to-slide adjustment
12 mm
Die plate dimensions
500 × 500 mm
Die plate thickness
100 mm
Upper ejector stroke
at least 20 mm
Lower ejector force
120 kN / 12 tf
Lower ejector adjustment
20 mm
Lower ejector stroke
40 mm
Main motor power
12 kW
Electrical supply
380 V / 50 Hz
Overall dimensions (L × W × H)
1,940 × 1,240 × 2,800 mm
Machine weight
8,500 kg
Condition
Used
Dismantling
Dismantling, packaging & logistics
For heavy forging and hydraulic presses, logistics is as important as the machine itself. We treat this as a separate, carefully planned project.
Together with our partners we manage dismantling on site, industrial packaging, loading into trucks or containers and international transport. This reduces the risk of damage and delays, especially when the buyer cannot be present in person.
Please send us your contact details and we will provide available information about this equipment.
Common questions
Frequently Asked Questions
Yes, this press is listed as available and located in Europe. It is sold used and as found.
Yes. We arrange on-site inspections by appointment, and we can share additional photos or a video walk-through for buyers who cannot travel.
TRIGA provides the machine's technical data — HS code and specifications — plus transport documents such as invoice, packing list, CMR or Bill of Lading. Certificates and customs declarations are handled by the buyer's broker or freight forwarder; TRIGA does not issue certificates for used equipment.
Yes. TRIGA can coordinate dismantling, lifting, loading and delivery, and prepares the commercial and transport documents. Your customs broker or freight forwarder handles declarations, clearance and any origin certificate required. At 1,940 × 1,240 × 2,800 mm and 8,500 kg, the KB8336 is a compact unit that simplifies loading and routing compared to larger presses.
Model-passport data state 4,000 kN (400 tons) nominal force, a 130 mm slide stroke, 50 strokes per minute and a 500 × 500 mm die plate. The maximum table-to-slide distance at the bottom position is 475 mm, with 12 mm adjustment. The fitted motor, electrical equipment and actual condition should be confirmed during inspection.
