Roundfin Low-Profile Microtome Blade Holder
1. Dedicated single-profile design — factory-configured for low-profile blades only (NOT universal)
2. Compatible with Thermo Scientific (Microm), Leica, Sakura, and most standard rotary microtomes
3. Safe horizontal lateral blade shift mechanism prevents accidental operator contact during handling
4. 3-Zone full-edge utilization extends blade life — each edge divided into three cutting zones
5. Precision screw-lock clamping delivers firm, vibration-free blade retention for consistent sectioning
6. Stainless steel corrosion-resistant construction — separate high-profile model available upon request
Product Overview
The Roundfin Low-Profile Microtome Blade Holder is a precision-engineered, dedicated single-profile blade holder designed specifically for low-profile disposable microtome blades. This is a fixed-profile holder — it is optimized for one blade type, providing superior clamping stability and repeatable cutting performance compared to universal holders that compromise between profiles.
Roundfin Single-Profile Blade Holder — dedicated low-profile configuration for optimal clamping precision
Important — Single-Profile Holder: This blade holder is factory-configured for low-profile blades ONLY. It is NOT a universal dual-profile holder. If you require a blade holder that accommodates both low-profile and high-profile blades in a single unit, Roundfin offers a separate Universal Dual-Profile Blade Holder model. The dedicated single-profile design provides superior clamping precision — eliminating the mechanical play introduced by adjustable-profile mechanisms.
Key Specifications at a Glance
Blade Profile: Low-Profile (Dedicated) | Compatibility: Thermo / Leica / Sakura Microtomes | Blade Movement: Horizontal Lateral Shift | Edge Utilization: 3-Zone Full-Edge
Technical Specifications
| Product | Low-Profile Microtome Blade Holder (Single-Profile) |
| Blade Profile | Low-Profile (dedicated, not adjustable) |
| High-Profile Version | Available as separate model upon request (NOT interchangeable) |
| Microtome Compatibility | Thermo Scientific (Microm), Leica, Sakura, and most standard rotary microtomes |
| Lateral Blade Shift | Horizontal movement for safety — blade retracts away from specimen during handling |
| 3-Zone Edge Utilization | Each blade edge is divided into 3 equal cutting zones for full-edge utilization |
| Material | Stainless steel body with precision-machined clamping surface |
| Blade Clamping | Screw-lock mechanism — firm, vibration-free blade retention |
| Compatible Blade Brands | Feather, Leica, Thermo, Sakura, Roundfin — all standard low-profile disposable blades |
| Warranty | Manufacturing defect replacement |
Key Features
- Dedicated Low-Profile Clamping — Factory-configured for low-profile blades only. No adjustment mechanism to introduce mechanical play — superior section consistency compared to universal holders.
- Safe Lateral Blade Shift — The blade holder moves horizontally away from the specimen during block changes and blade handling, preventing accidental contact between operator and cutting edge.
- 3-Zone Full Edge Utilization — Each disposable blade edge is divided into three equal cutting zones. Shift the blade laterally to use a fresh zone, maximizing the usable cutting length of every blade.
- Broad Microtome Compatibility — Compatible with Thermo Scientific (Microm), Leica, Sakura, and most standard rotary microtomes using a standard mounting interface.
- Precision Screw-Lock Clamping — Firm, vibration-free blade retention ensures consistent section thickness across the entire cutting stroke.
- Stainless Steel Construction — Corrosion-resistant body withstands daily exposure to sectioning debris, cleaning agents, and laboratory environments.
Single-Profile vs Universal Dual-Profile Holder
| Feature | This Single-Profile Holder | Universal Dual-Profile Holder |
|---|---|---|
| Blade Profiles Supported | Low-profile (single, dedicated) | Low-profile AND high-profile (switchable) |
| Clamping Stability | Maximum — fixed geometry, zero mechanical play | Good — adjustable mechanism introduces minor tolerance |
| Best For | Labs that standardize on low-profile blades; diagnostic labs prioritizing section consistency | Labs using both blade types; teaching labs with varied protocols; multi-user facilities |
| Maintenance | Minimal — no moving adjustment parts | Periodic — adjustment mechanism requires cleaning and calibration |
FAQ
Can this blade holder accept high-profile blades?
No. This is a dedicated single-profile holder factory-configured for low-profile blades only. The clamping geometry and retention mechanism are fixed for low-profile blade dimensions. A separate high-profile blade holder model is available upon request. For a holder that accepts both profiles in one unit, see Roundfin's Universal Dual-Profile Blade Holder.
Is this compatible with my microtome?
The blade holder is compatible with most standard rotary microtomes using a standard mounting interface, including Thermo Scientific (Microm HM series), Leica (RM series), and Sakura microtomes. Contact Roundfin with your microtome model number to confirm compatibility before ordering.
How does the 3-zone blade utilization work?
Each disposable blade edge is divided into 3 equal cutting zones. After one zone shows wear, use the lateral shift mechanism to move the blade horizontally — bringing a fresh, unused zone into the cutting position. This maximizes the cutting life of each disposable blade, reducing overall consumable costs.
What blade brands are compatible?
All standard low-profile disposable microtome blades are compatible — including Feather, Leica, Thermo Scientific, Sakura, and Roundfin blades. The screw-lock clamping mechanism accommodates the standard low-profile blade dimensions used by all major manufacturers.
Order the Correct Blade Holder for Your Lab
This holder is factory-configured for low-profile blades only — providing the best possible clamping stability for labs that standardize on one blade type. A high-profile version and a Universal Dual-Profile model are available separately.
Contact our team: Specify your microtome model and preferred blade profile — we will confirm the correct holder for your setup within 12 hours.
